Patent Publication Number: US-11375786-B2

Title: Pack bag with easy-access portal and inner removable accessory organizer

Description:
RELATED APPLICATION DATA 
     This application is a continuation in part of commonly-assigned U.S. patent application Ser. No. 16/000,851, filed Jun. 5, 2018, now U.S. Pat. No. 10,893,733, which is a continuation in part of commonly-assigned U.S. patent application Ser. No. 14/941,950, filed Nov. 16, 2015, now U.S. Pat. No. 10,123,599, which is a continuation in part of commonly-assigned U.S. patent application Ser. No. 14/293,588, filed Jun. 2, 2014, now U.S. Pat. No. 9,215,918, which claims the benefit of commonly-assigned U.S. Provisional Pat. Application Ser. No. 61/833,270, filed Jun. 10, 2013, which are hereby incorporated by reference in their entirety. 
    
    
     FIELD OF THE INVENTION 
     This application pertains to pack bags, and more particularly, to a pack bag having one or more inner organizers containable therein. 
     BACKGROUND 
     Most people own things that sometimes need to be packed into a bag for transporting or storing. For example, travelers usually must carry their personal belongings in some kind of bag or container, especially if the trip lasts for more than one day. By way of another example, some people prefer that their items are stored in an organized fashion. Various types of luggage, baggage, and related containers have been proposed for transporting and storing items safely and securely. However, conventional luggage and bags are often bulky and awkward, and fail to provide the ability to efficiently fit, organize, view, and access a person&#39;s belongings. Some people have larger items and need an easier way to manipulate the shape, size, and configuration of containers within the bag, but conventional bags lack such configurability. Conventional bags also fail to provide configurability, organizational, and accessibility features that would help simplify the storage and/or transport of personal items. 
     Accordingly, a need remains for a pack bag having easy access portals and an inner removable collapsible accessory organizer, which accommodates and organizes multiple types of personal belongings including garments and other belongings, and which provides quick and easy visibility and access to its contents. Embodiments of the invention address these and other limitations in the prior art. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  illustrates a luggage bag including an outer container in an opened configuration and a removable organizer in accordance with various inventive concepts of the present invention. 
         FIG. 2  illustrates the luggage bag of  FIG. 1  in a closed configuration. 
         FIG. 3  illustrates the luggage bag of  FIG. 1  in the opened configuration without the removable organizer, thereby revealing a detachable garment flap in accordance with various inventive concepts of the present invention. 
         FIG. 4  illustrates the detachable garment flap of  FIG. 3 . 
         FIGS. 5A and 5B  illustrate different views of the organizer of  FIG. 1  including various compartments removed from the container of  FIG. 1 . 
         FIG. 6  illustrates another view of the organizer of  FIG. 1 . 
         FIGS. 7A, 7B, and 7C  illustrate various perspective views of a single compartment of the organizer of  FIG. 1 . 
         FIG. 8  illustrates the luggage bag of  FIG. 1  including an outer container in an opened configuration and a removable organizer in a folded configuration in accordance with various inventive concepts of the present invention. 
         FIGS. 9A and 9B  illustrate the luggage bag of  FIG. 1  in the closed configuration, including multiple grab handles disposed thereon. 
         FIG. 10  illustrates a close-up view of a grab handle of  FIGS. 9A and 9B . 
         FIG. 11  illustrates a close-up of an example of a detachable zipper and flap construction. 
         FIG. 12  illustrates a perspective view of an overhead luggage bag including an outer container in an opened configuration, a built-in compartment within the outer container, and first and second removable compartments in accordance with various inventive concepts of the present invention. 
         FIG. 13  illustrates a perspective view of the overhead luggage bag of  FIG. 12  in a closed configuration. 
         FIG. 14  illustrates a plan view of the overhead luggage bag of  FIG. 12  in an opened configuration. 
         FIG. 15  illustrates a side elevation view of the overhead luggage bag of  FIG. 12  showing the relative positions of the built-in and removable compartments in both closed and open configurations. 
         FIG. 16  illustrates a close-up view of a portion of the overhead luggage bag of  FIG. 12  including an easy-access portal through which contents of the luggage bag can be conveniently accessed without fully opening the luggage bag. 
         FIG. 17  illustrates an inner access flap and easy-access portal of a removable compartment of the overhead luggage bag of  FIG. 12  in accordance with inventive concepts. 
         FIG. 18  illustrates an accessory organizer in a folded configuration in accordance with various inventive concepts of the present invention. 
         FIG. 19  illustrates the accessory organizer of  FIG. 18  in the folded configuration with a human hand engaging with a first pull handle or strap. 
         FIG. 20  illustrates the accessory organizer of  FIG. 18  in a partially unfolded configuration with the human hand engaging with the first pull handle or strap. 
         FIG. 21  illustrates the accessory organizer of  FIG. 18  in another partially unfolded configuration with the human hand engaging with the first pull handle or strap. 
         FIG. 22  illustrates the accessory organizer of  FIG. 18  in a completely unfolded configuration with the human hand engaging with the first pull handle or strap. 
         FIG. 23  illustrates the accessory organizer of  FIG. 18  in the completely unfolded configuration. 
         FIG. 24  illustrates the accessory organizer of  FIG. 18  in the completely unfolded configuration with the human hand engaging with a second pull handle or strap. 
         FIG. 25  illustrates the accessory organizer of  FIG. 18  in a partially folded configuration with the human hand engaging with the second pull handle or strap. 
         FIG. 26  illustrates the accessory organizer of  FIG. 18  in another partially folded configuration with the human hand engaging with the second pull handle or strap. 
         FIG. 27  illustrates the accessory organizer of  FIG. 18  in a completely folded configuration. 
         FIG. 28  illustrates an accessory organizer in a folded configuration with a top compartment in an open configuration in accordance with various inventive concepts of the present invention. 
         FIG. 29  illustrates a single compartment from the accessory organizer of  FIG. 28  in a collapsed and closed configuration in accordance with various inventive concepts of the present invention. 
         FIG. 30  illustrates a single compartment from the accessory organizer of  FIG. 28  in a collapsed and open configuration in accordance with various inventive concepts of the present invention. 
         FIG. 31  illustrates a single compartment from the accessory organizer of  FIG. 28  in a partially collapsed and open configuration in accordance with various inventive concepts of the present invention. 
         FIG. 32  illustrates a single compartment from the accessory organizer of  FIG. 28  in an upright and open configuration in accordance with various inventive concepts of the present invention. 
         FIG. 33  illustrates the accessory organizer of  FIG. 28  in an upright and closed configuration and located within a luggage bag in accordance with various inventive concepts of the present invention. 
         FIG. 34  illustrates a plan view of various different accessory organizers having various dimensions in accordance with various inventive concepts of the present invention. 
         FIG. 35  illustrates a pack bag including an outer container and an inner removable accessory organizer in accordance with various inventive concepts of the present invention. 
         FIG. 36  illustrates the pack bag of  FIG. 35  with the inner accessory organizer removed from the outer container in accordance with various inventive concepts of the present invention. 
         FIG. 37  illustrates the inner removable accessory organizer of  FIG. 35  as a single bundled unit in accordance with various inventive concepts of the present invention. 
         FIG. 38  illustrates a top view of the pack bag of  FIG. 35 . 
         FIG. 39  illustrates a first easy-access portal in a top wall of the outer container of the pack bag of  FIG. 35  through which contents of a compartment of the inner removable accessory organizer are accessible in accordance with various inventive concepts of the present invention. 
         FIG. 40  illustrates a second easy-access portal associated with the pack bag of  FIG. 35  through which contents of another compartment of the inner removable accessory organizer are accessible in accordance with various inventive concepts of the present invention. 
         FIG. 41  illustrates a side view of the inner removable accessory organizer of  FIG. 35 . 
         FIG. 42  illustrates a plan view of a carry-on sized pack bag including an outer container and an inner removable accessory organizer in accordance with various inventive concepts of the present invention. 
         FIG. 43  illustrates a side elevation view of the pack bag of  FIG. 42  including multiple upright compartments of the inner removable accessory organizer in accordance with various inventive concepts of the present invention. 
         FIG. 44  illustrates a side elevation view of the pack bag of  FIG. 42  including multiple upright compartments and one collapsed compartment of the inner removable accessory organizer, along with an item outside of the inner removable accessory organizer but inside of the outer container in accordance with various inventive concepts of the present invention. 
         FIG. 45  illustrates a side elevation view of the pack bag of  FIG. 42  including one upright compartment and multiple collapsed compartments of the inner removable accessory organizer, along with multiple items outside of the inner removable accessory organizer but inside of the outer container in accordance with various inventive concepts of the present invention. 
         FIG. 46  illustrates a side elevation view of the pack bag of  FIG. 42  including no upright compartments and multiple collapsed compartments of the inner removable accessory organizer, along with multiple items outside of the inner removable accessory organizer but inside of the outer container in accordance with various inventive concepts of the present invention. 
         FIG. 47  illustrates a plan view of a checked-in-sized pack bag including an outer container and a full-size inner removable accessory organizer in accordance with various inventive concepts of the present invention. 
         FIG. 48  illustrates a side elevation view of the pack bag of  FIG. 47  including multiple upright compartments of the inner removable accessory organizer in accordance with various inventive concepts of the present invention. 
         FIG. 49  illustrates a plan view of a checked-in-sized pack bag including an outer container and two half-size inner removable accessory organizers in accordance with various inventive concepts of the present invention. 
         FIG. 50  illustrates a plan view of the pack bag of  FIG. 49  including the outer container and only one half-size inner removable accessory organizer, along with multiple items outside of the one half-size inner removable accessory organizer but inside of the outer container in accordance with various inventive concepts of the present invention. 
         FIG. 51  illustrates a side elevation view of the pack bag of  FIG. 49  including the outer container and the multiple half-size inner removable accessory organizers, along with multiple items located atop the multiple half-size inner removable accessory organizers but inside of the outer container in accordance with various inventive concepts of the present invention. 
         FIG. 52  illustrates a side elevation view of the pack bag of  FIG. 49  including the outer container and only one half-size inner removable accessory organizer, along with multiple items located adjacent to the half-size inner removable accessory organizer but inside of the outer container in accordance with various inventive concepts of the present invention. 
         FIG. 53  illustrates a plan view of a pack bag including an outer container and three inner removable accessory organizers in accordance with various inventive concepts of the present invention. 
         FIG. 54  illustrates a side elevation view of the pack bag of  FIG. 53  including a first inner removable accessory organizer in a partially collapsed configuration, a second inner removable accessory organizer in a collapsed configuration, and a third inner removable accessory organizer in an upright configuration, along with multiple items located atop the partially collapsed and the collapsed inner removable accessory organizers but inside of the outer container in accordance with various inventive concepts of the present invention. 
     
    
    
     The foregoing and other features of the invention will become more readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings. 
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     Reference will now be made in detail to embodiments of the inventive concept, examples of which are illustrated in the accompanying drawings. The accompanying drawings are not necessarily drawn to scale. In the following detailed description, numerous specific details are set forth to enable a thorough understanding of the inventive concept. It should be understood, however, that persons having ordinary skill in the art may practice the inventive concept without these specific details. In other instances, well-known methods, procedures, and components, have not been described in detail so as not to unnecessarily obscure aspects of the embodiments. 
     It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first handle could be termed a second handle, and, similarly, a second handle could be termed a first handle, without departing from the scope of the inventive concept. 
     It will be understood that when an element or layer is referred to as being “on,” “coupled to” or “connected to” another element or layer, it can be directly on, directly coupled to or directly connected to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being “directly on,” “directly coupled to” or “directly connected to” another element or layer, there are no intervening elements or layers present. Like numbers refer to like elements throughout. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items. 
     The terminology used in the description of the inventive concept herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the inventive concept. As used in the description of the inventive concept and the appended claims, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term “and/or” as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. 
       FIG. 1  illustrates a luggage bag  100  including an outer container  105  in an opened configuration and a removable organizer  110  in accordance with various inventive concepts of the present invention.  FIG. 2  illustrates the luggage bag  100  of  FIG. 1  in a closed configuration. Reference is now made to  FIGS. 1 and 2 . 
     The luggage bag  100  generally includes an outer container  105  and a removable organizer  110 , which can be contained within the outer container  105 . As will be discussed, the organizer  110  allows items to be stored securely and conveniently within the container  105 . Also, the organizer  110  fits neatly into the container  105 . Moreover, the organizer  110  can be modular and configurable for additional benefits, which are discussed in detail below. 
     The outer container  105  can be of any suitable type. For example, the container  105  can have rigid walls (e.g.,  115 ) so that it essentially maintains its shape whether in the opened configuration as shown in  FIG. 1  or the closed configuration as shown in  FIG. 2 . Alternatively, the container  105  can have flexible or collapsible walls (e.g.,  115 ). The container  105  can also include a closure flap  120 , which can include connective means such as a zipper  125  that allows the closure flap  120  to be selectively connected or disconnected from the walls  115 , thereby placing the luggage bag  100  into either the closed configuration or the open configuration, respectively. The luggage bag  100  can include an external-access storage area  130 , which can store a smart phone, airline ticket information, and the like. 
     The outer container  105  can also include other features that enhance portability. For example, the container  105  can include one or more wheels  205 , which can be attached at the joining region of two or more walls  115 , as shown in  FIG. 2 . The container  105  can also include a telescoping handle  210  ( FIG. 2 ). It will be appreciated, that the container  105  can vary in many ways from the container  105  shown in the Figures. Indeed, the container  105  can be of any suitable type, can have any suitable shape, and can incorporate one or more additional features typically found on other bags, luggage, briefcases, handbags, purses, and the like. 
       FIG. 3  illustrates the luggage bag  100  of  FIG. 1  in the opened configuration without the removable organizer, thereby revealing a detachable garment flap  120  in accordance with various inventive concepts of the present invention.  FIG. 4  illustrates the detachable garment flap  120  of  FIG. 3 . Reference is now made to  FIGS. 1-4 . 
     The closure flap  120  can be a detachable garment flap  120 . The detachable garment flap  120  can include an envelope  305  in which garments such as suits, pants, shirts and the like can be neatly stored and transported. The detachable garment flap  120  is interchangeable with one or more different garment flaps to accommodate style preference, color, size, or the like. The envelope  305  can include one more pleated gussets  310  so that the volume of the envelope can automatically expand to accommodate multiple garments. The detachable garment flap  120  can be attached or detached to and from the luggage bag  100  using connection means such as the zipper  125 . Other suitable connection means can include Velcro®, buttons, snaps, or the like. The garment flap  120  can also include its own zipper  315  or other suitable opening and closing means such as Velcro®, buttons, snaps, or the like, to enable efficient and convenient access to the envelope  305 . 
     Referring to  FIG. 4 , the detachable garment flap  120  can include one or more shoulder seams  405 . The volume of the envelope  305  can stop or otherwise be defined at least in part by the one or more shoulder seams  405 . The garment flap  120  can also include webbing  410  for added ventilation. In addition, the garment flap  120  can include a strap and buckle mechanism  415  or other similar means for gathering and/or securing a lower portion of the various garments  420  stored within the envelope  305 . The detachable garment flap  120  can include one or more sub-flaps  425  for covering and/or securing the zipper  125 , as further described below. 
     One or more cargo pockets  320  may be disposed within the container  105 , for example, on inside regions of the walls  115 . The one or more cargo pockets  320  can each include its own zipper  315  or other suitable opening and closing means such as Velcro®, buttons, snaps, or the like. 
       FIGS. 5A and 5B  illustrate different views of the organizer  110  of  FIG. 1  including various compartments  505  removed from the container of  FIG. 1 .  FIG. 6  illustrates another view of the organizer  110  of  FIG. 1 .  FIGS. 7A, 7B, and 7C  illustrate various perspective views of a single compartment  505  of the organizer  110  of  FIG. 1 .  FIG. 8  illustrates the luggage bag  100  of  FIG. 1  including an outer container  105  in an opened configuration and a removable organizer  110  in a folded configuration in accordance with various inventive concepts of the present invention. Reference is now made to  FIGS. 5A, 5B, 6, 7A, 7B, 7C , and  8 . 
     The organizer  110  can include a plurality of hollow compartments  505 . Each compartment  505  can include a plurality of walls  510 ,  515 ,  520 , and  525  made out of compression molded material, which can include plastic, metal, rubber, composite material, or the like. Alternatively, the walls of each of the compartments  505  can be made of fabric or other suitable material. Each compartment  505  can be generally cuboid shaped. As such, each compartment  505  can include a bottom wall  510 . Each compartment  505  can also include two long sidewalls  515  and two short sidewalls  520 . The sidewalls  515  and  520  can trace the periphery of the bottom wall  510  and can extend substantially perpendicularly therefrom. The long sidewalls  515  can be opposite each other, and the short sidewalls  520  can be opposite each other. 
     Each compartment  505  can further include a top wall  525 , which can be connected to the sidewalls  515  and  525 , and that is opposite the bottom wall  510 . The bottom wall  510  and sidewalls  515  and  520  can be substantially opaque while the top wall  525  can be at least partially light-transmissive. For instance, the top wall  525  can be made of a see-through mesh material and/or stretch-mesh material. The top wall  525  can also be at least partially removably attached to one or more of the sidewalls  515  and  520 , for instance, via a zipper, snaps, or other closure. Accordingly, the top wall  525  can be detached (e.g., unzipped) from one or more of the sidewalls  515  and  520  to provide access into the compartment  505 , and items can be placed within the compartment  505 . Then, the top wall  525  can be selectively attached (e.g., zipped) to the sidewalls  515  and  520  to secure the items within the compartment  505 . 
     The organizer  110  can include any suitable number of individual compartments  505 . In the embodiments shown, there are three compartments  505 , and the compartments fold and stack on each other. Thus, as shown in  FIG. 8 , the organizer  110  can be folded and stacked to be stored within the outer container  105 , and the garment flap  120  can be closed over and can encapsulate the organizer  110 . Then, when desired, the compartments  505  can be entirely removed from the container  105  and unfolded to deploy and extend from the container  105  as shown in  FIG. 1 . Moreover, the organizer  110  can be completely removed from the container  105  as shown in  FIG. 8 . 
     As shown in  FIGS. 5A, 5B, and 6 , the compartments  505  can be connected to each other via connector  530  and connector  532 . The connectors  530  and  532  can be stitching or other type that permanently fixes the compartments  505  together. In other embodiments, the connectors  530  and  532  can be a zipper, pile tape (e.g., VELCRO™), snaps, buttons, or other suitable connector for removably connecting the compartments  505 . The compartments  505  can be aligned (when unfolded) such that adjacent long sidewalls  515  are connected together. Also, the connector  530  can be located along one edge or region of the bottom wall  510 . The connector  532  can be located along one edge or region of the top wall  525 . For instance, the bottom connector  530  can connect adjacent bottom walls  510 , and the top connector  532  can connect adjacent top walls  525 . 
     The middle compartment  505  of the organizer  110  includes the bottom connector  530  on one side and the top connector  532  on the opposite side. The top and bottom connectors  530  and  532  can, thus, alternate along the entire length of the organizer  110  such that the compartments  505  can stack up in sequence in a compact manner. The organizer  110  can be modular such that the compartments  505  can be configured in any desirable manner. For example, one or more compartments  505  can be attached and added to the organizer  110 , or one or more compartments  505  can be detached and removed from the organizer  110 . 
     Also, in some embodiments, the compartments  505  can include available connectors (e.g.,  530  and  532 ) extending along the short sidewalls  520  as well as along the long sidewalls  515  such that the compartments  505  can unfold to be aligned or transverse to each other. This modularity allows the organizer  110  to be configured as desired. The various compartments are foldable one atop the other. The organizer  110  can, thus, take up substantially the entire interior volume of the outer container  105  or less than the entire interior volume. 
     The organizer  110  can also include a first pull handle  535  or strap and a second pull handle  540  or strap. The pull handles can be, for example, a molded rubber pull or handle. Alternatively, the pull handles can be made of material, metal, plastic, or the like. The pull handles  535  and  540  can be located on the organizer  110  to facilitate moving the organizer  110  into and out of the outer container  505 . For instance, the first pull handle  535  can be fixed to the outermost compartment  505 , located at the end of the organizer  110 , and the first pull handle  535  can be pulled to unfold, and deploy the organizer  110  from the container  105 . Also, the compartment  505  at the end of the organizer  110  opposite the first pull handle  535  can be removably coupled to the container  105  (e.g., by pile tape, snaps, etc.) to facilitate deployment of the organizer  110  from the container  105 . 
     Furthermore, as shown in  FIGS. 5A, 5B, and 6 , the second pull handle  540  can be included between the middle compartment  505  and the outermost compartment  505 , and the second pull handle  540  can be lifted such that gravity causes folding of the compartments  505  on each other. The second pull handle  540  can then be used to further fold the compartments  505  on each other and move the organizer  110  into the container  105 . 
     Also, when the organizer  110  is deployed from the container  105 , the compartments  505  can face the same direction such that the top walls  525  are each aligned in a substantially continuous row. As such, the contents of each of the compartments  505  can be visible, and the compartments  505  can be highly accessible when deployed from the container  105 . 
     It will be appreciated that the organizer  110  can be used within any suitable container and/or can be used and sold independently from the outer container  105 . Also, individual compartments  505  can be sold separately and added to the organizer  110  as needed. Moreover, the compartments  505  within the organizer  510  can include interior dividing walls  545  for further separating or securing items within the respective compartment  505 . The dividing walls  545  can be molded into the individual compartments  505  and/or have a height that is less than the height of the walls of each compartment  505 . A debossed logo  705  can be imprinted directly into one or more of the walls  510 . 
       FIGS. 9A and 9B  illustrate the luggage bag  100  of  FIG. 1  in the closed configuration, including multiple grab handles  905  and  910  disposed thereon. As shown in  FIGS. 9A and 9B , the luggage bag  100  can include a first grab handle  905  disposed atop one of the walls  115  opposite the telescoping handle  210  ( FIG. 2 ). In addition, the luggage bag  100  can include a second grab handle  910  disposed atop another of the walls  115  opposite the one or more wheels  205 . In this manner, the first and second grab handles  905  and  910  provide two-handed horizontal lifting from a trunk or baggage carousel, for example. 
       FIG. 10  illustrates a close-up cross sectional view of the grab handles of  FIGS. 9A and 9B . As can be seen, the grab handles can be captured and secured at seams  915 . In addition, the grab handles  905  and  910  can be made of tubular webbing that is stuffed with cross-link foam or other suitable stuffing material. In this manner, the grab handles  905  and  910  provide comfortable and efficient lifting access to the luggage bag  100 . 
       FIG. 11  illustrates a close-up of an example of a detachable zipper and flap mechanism  1100 . The detachable zipper and flap mechanism  1100  can include a connective cover flap  1105 , which may include a securing means such as a snap  1110 . The connective cover flap  1105  may fold down over an adjoining zipper section  1115  and snap into place using the securing means  1110 . The connective cover flap  1105  may therefore cover and secure one or more locations on the luggage bag  100  where zippers or other connectors meet. 
     Thus, the luggage bag  100  is very portable and can securely store items within the organizer  110  in an orderly manner. The organizer  110  can also be configured in a wide variety of ways according to the desires of the user. In a single motion, the luggage bag  100  can be transformed from limited access to the contents to complete access almost instantaneously while maintaining organization of the contents. Similarly, in another single motion, the compartments of the organizer  110  can be quickly and conveniently folded back into the outer container  105  of the luggage bag  100 . 
       FIG. 12  illustrates a perspective view of an overhead luggage bag  1200  including an outer container  1202  in an opened configuration, a built-in compartment  1205  within the outer container  1202 , a first removable compartment  1210 , and a second removable compartment  1215  in accordance with various inventive concepts of the present invention. The outer container  1200  can be constructed, for example, of rugged cloth material, lining materials such as polyester, lightweight metals such as aluminum, hard or rigid plastics, composite materials, or any other suitable kind of material. In some embodiments, the entire outer container  1202  can be constructed of a metal such as molded aluminum. Other materials can be used to construct the entire outer container such as a metal amalgam, a composite material, a cloth material, or the like. 
     The outer container  1202  can include an organizer having the built-in compartment  1205 , the first removable compartment  1210 , and the second removable compartment  1215 . The organizer can include a first connector  1220 , which can connect and disconnect the first removable compartment  1210  to and from the second removable compartment  1215  using, for example, one or more zippers  1240 . The organizer can include a second connector  1225 , which can connect and disconnect the first removable compartment  1210  to and from the built-in compartment  1205  using, for example, one or more zippers  1245 . 
     For example, the first connector  1220  and/or the second  1225  can include stitching or other material type that permanently fixes the compartments together. In other embodiments, the connectors  1220  and/or  1225  can include one or more zippers (e.g.,  1240  and  1245 ), pile tape (e.g., VELCRO™), snaps, buttons, or other suitable connector for removably connecting the compartments. The compartments  1210  and  1215  can be aligned (when unfolded) such that adjacent sidewalls are connected together. 
     The organizer can include a first pull handle or strap  1230  connected to the second removable compartment  1215 , and a second pull handle or strap  1235  connected to the second removable compartment  1215 . The first pull handle or strap  1230  can unfold and deploy the first and second removable compartments  1210  and  1215  from the outer container  1202 . The second pull handle or strap  1235  can fold the first and second removable compartments  1210  and  1215  one atop the other into the outer container  1202  atop the built-in compartment  1205 . 
     The outer container  1202  can include a first rigid sidewall  1260  disposed at a first end of the outer container  1202 , and a second rigid sidewall  1265  disposed at a second end opposite the first end of the outer container  1202 . The first rigid sidewall  1260  and/or second rigid sidewall  1265  can include one or more curved corners (e.g.,  1270 ) that maintain their shape whether in an open configuration or a closed configuration. The outer container  1202  can include an outer flap  1285  configured to be attached to the first rigid sidewall  1260  and/or to the second rigid sidewall  1265  along the one or more curved corners (e.g.,  1270 ), such that the outer flap  1285  can cover the first and second removable compartments  1210  and  1215  within the outer container  1202 . 
     The outer container  1202  can include a third rigid wall  1297  disposed at a third end perpendicular to the first and second rigid sidewalls  1260  and  1265 . A plurality of casters or wheels  1295  can be disposed on the third rigid wall  1297  of the outer container  1202 . The outer flap  1285  can be attached to the first rigid sidewall  1260  and/or to the second rigid sidewall  1265 , such that the outer flap  1285  can cover the first and second removable compartments  1210  and  1215  within the outer container  1202 . The outer container  1202  can include a fourth rigid wall  1275  opposite the third rigid wall  1297 . The outer container  1202  can include a rigid support wall  1299  that is perpendicular to the first rigid sidewall  1260 , the second rigid sidewall  1265 , the third rigid wall  1297 , and the fourth rigid wall  1275 . The outer flap  1295  can be at least partially removably attached to one or more of the first rigid sidewall  1260 , the second rigid sidewall  1265 , and/or the fourth rigid wall  1275  of the outer container  1202 , for instance, via one or more zippers  1290 , snaps, or other closure. 
     The built-in compartment  1205  can include a support wall corresponding with the rigid support wall  1299  of the outer container  1202 , an inner access flap  1207 , and first, second, third, and fourth sidewalls. In other words, the rigid support wall  1299  and lower portions of the first and second rigid sidewalls  1260  and  1265  of the outer container  1202 , and lower portions of the rigid third and fourth walls  1297  and  1275 , can correspond to a support wall and sidewalls of the built-in compartment  1205 . Put differently, the rigid support wall  1299  can also act as the support wall for the built-in compartment  1205 , a lower portion of the first rigid sidewall  1260  of the outer container  1202  can act as a sidewall of the built-in compartment  1205 , a lower portion of the second rigid sidewall  1265  of the outer container  1202  can act as another sidewall of the built-in compartment  1205 , a lower portion of the third rigid sidewall  1297  of the outer container  1202  can act as yet another sidewall of the built-in compartment  1205 , and a lower portion of the fourth rigid sidewall  1275  of the outer container can act as still another sidewall of the built-in compartment  1205 . 
     The inner access flap  1207  of the built-in compartment can be at least partially light-transmissive. For example, the inner access flap  1207  can be made of a see-through mesh material and/or stretch-mesh material. The support wall and the first, second, third, and fourth sidewalls of the built-in compartment  1205  can be substantially opaque. The inner access flap  1207  can also be at least partially removably attached to one or more of the sidewalls of the built-in compartment  1205 , for instance, via one or more zippers  1209 , snaps, or other closure. Accordingly, the inner access flap  1207  can be detached (e.g., unzipped) from one or more of the sidewalls of the built-in compartment  1205  to provide access into the built-in compartment  1205 , and items can be placed within the built-in compartment  1205 . Then, the inner access flap  1207  can be selectively attached (e.g., zipped) to the sidewalls to secure the items within the built-in compartment  1205 . 
     The first removable compartment  1210  can include a support wall, an inner access flap  1212 , and first, second, third, and fourth sidewalls, that are separate and spaced apart from the built-in compartment  1205  and the second removable compartment  1215 . The support wall and the first, second, third, and fourth sidewalls of the first removable compartment  1210  can be substantially opaque and/or made of compression molded material. The support wall of the first removable compartment  1210  can lay flat atop a surface when in an unfolded configuration. 
     The inner access flap  1212  of the first removable compartment  1210  can be at least partially light-transmissive. For example, the inner access flap  1212  can be made of a see-through mesh material and/or stretch-mesh material. The inner access flap  1212  can also be at least partially removably attached to one or more of the sidewalls of the first removable compartment  1212 , for instance, via one or more zippers  1255 , snaps, or other closure. Accordingly, the inner access flap  1212  can be detached (e.g., unzipped) from one or more of the sidewalls of the first removable compartment  1210  to provide access into the first removable compartment  1210 , and items can be placed within the first removable compartment  1210 . Then, the inner access flap  1212  can be selectively attached (e.g., zipped) to the sidewalls to secure the items within the first removable compartment  1210 . 
     The second removable compartment  1215  can include a support wall, an inner access flap  1217 , and first, second, and third sidewalls that are separate and spaced apart from the built-in compartment  1205  and the first removable compartment  1210 . The support wall and the first, second, third, and fourth sidewalls of the second removable compartment  1215  can be substantially opaque and/or made of compression molded material. The support wall of the second removable compartment  1215  can lay flat atop a surface when in an unfolded configuration. 
     The inner access flap  1217  of the second removable compartment  1215  can be substantially opaque. The inner access flap  1217  can be at least partially removably attached to one or more of the sidewalls of the second removable compartment  1215 , for instance, via one or more zippers  1250 , snaps, or other closure. Accordingly, the inner access flap  1217  can be detached (e.g., unzipped) from one or more of the sidewalls of the second removable compartment  1215  to provide access into the second removable compartment  1215 , and items can be placed within the second removable compartment  1215 . Then, the inner access flap  1217  can be selectively attached (e.g., zipped) to the sidewalls to secure the items within the second removable compartment  1215 . Moreover, the inner access flap  1217  can curve around an end of the second removable compartment  1215  such that the inner access flap  1217  acts as a portion of a sidewall of the second removable compartment  1215  as shown at  1298 , and as further described below. 
     The second pull handle or strap  1235  can be lifted such that the second removable compartment  1215  can be folded on the first removable compartment  1210 , and the first removable compartment  1210  can be folded on the built-in compartment  1205 , in a folded configuration. In the folded configuration, the built-in compartment  1205  and the second removable compartment  1210  can be in an upright orientation, and the first removable compartment  1215  can be in an inverted orientation, relative to each other. The organizer including the various compartments can fit in a folded configuration between the first rigid wall  1260  and the second rigid wall  1265  within the outer container  1202 . 
     The overhead luggage bag  1200  can include an external-access storage area  1280  disposed on an outer surface of at least one of the first rigid wall  1260  or the second rigid wall  1265 . The second removable compartment  1215  can include a D-ring  1252  to assist in unfolding the compartments and/or carrying the second removable compartment  1215 . 
       FIG. 13  illustrates a perspective view of the overhead luggage bag  1200  of  FIG. 12  in a closed configuration. Some elements shown in  FIG. 13  are described in detail above, and therefore a detailed description of such elements is not necessarily repeated. The overhead luggage bag  1200  can include an external-access storage area  1315  disposed on an outer side of the outer flap  1285 , which can store a notebook, papers, a laptop computer, airline ticket information, or the like. 
     The overhead luggage bag  1200  can include a telescoping handle  1305 . It will be appreciated, that the container  1202  can vary in many ways from the container  1202  shown in the Figures. Indeed, the container  1202  can be of any suitable type, can have any suitable shape, and can incorporate one or more additional features typically found on other bags, luggage, briefcases, handbags, purses, and the like. The overhead luggage bag  1200  can include one or more grab handles  1310  disposed atop the rigid wall  1275  adjacent the telescoping handle  1305 . 
       FIG. 14  illustrates a plan view of the overhead luggage bag  1200  of  FIG. 12  in an opened configuration. Some elements shown in  FIG. 14  are described in detail above, and therefore a detailed description of such elements is not necessarily repeated. The overhead luggage bag  1200  can include a second grab handle  1405  disposed on the rigid sidewall  1265  opposite the rigid sidewall  1260  having the external-access storage area  1280 . In this manner, the two grab handles  1310  (of  FIG. 13 ) and  1405  (of  FIG. 14 ) provide two-handed grabbing and lifting from an overhead compartment in an airplane, from a trunk of a vehicle, from a baggage carousel, or the like. The overhead luggage bag  1200  can include a slip pocket  1410  in which relatively flat items such as papers, notebooks, or the like, can be conveniently stored. 
       FIG. 15  illustrates a side elevation view of the overhead luggage bag  1200  of  FIG. 12  showing the relative positions of the built-in and removable compartments in both closed and open configurations. Some elements shown in  FIG. 15  are described in detail above, and therefore a detailed description of such elements is not necessarily repeated. 
     The first connector  1220  can be located along one region of a support wall  1505  of the first removable compartment  1210 . The first connector  1220  can connect the second removable compartment  1215  to the first removable compartment  1210  such that the first connector  1220  connects the support wall  1505  of the first removable compartment  1210  and a support wall  1510  of the second removable compartment  1215 . The second connector  1225  can be located along another region of the inner access flap  1212  of the first removable compartment  1210 . The second connector  1225  can connect the first removable compartment  1210  to the built-in compartment  1205 . 
     The first connector  1220  can be located along one edge or region of the support wall  1505 , the sidewall  1520 , the support wall  1510 , and/or the sidewall  1515 . The second connector  1225  can be located along one edge or region of a sidewall  1530  of the first removable compartment  1210  and/or a sidewall of the built-in compartment  1205 . 
     The first pull handle or strap  1230  can be connected at an end of the second removable compartment  1215  in a first region including a support wall  1510  of the second removable compartment  1215 . The second pull handle or strap  1235  can be connected in a second region including a sidewall  1515  of the second removable compartment  1215  opposite a sidewall  1520  of the first removable compartment  1210 . In some embodiments, the second pull handle or strap  1235  can be disposed between the first removable compartment  1210  and the second removable compartment  1215 . For example, the second pull handle or strap  1235  can be disposed directly opposite the first connector  1220  relative to the sidewall  1515  of the second removable compartment  1215 . 
     The inner access flap  1217  can curve around an end of the second removable compartment  1215 , as shown at  1298 , such that the inner access flap  1217  can act as a portion of a sidewall  1525  of the second removable compartment  1215 . The one or more zippers  1250  can follow the curvature of the rounded sidewalls of the second removable compartment  1215 . Disconnecting the inner access flap  1217  from the sidewall  1525  by unzipping the inner access flap  1217  in the region  1298  of the second removable compartment  1215  creates an easy-access portal into the second removable compartment  1215 , as further described in detail below. 
     The second pull handle or strap  1235  can be lifted such that the second removable compartment  1215  can be folded on the first removable compartment  1210 , and the first removable compartment  1210  can be folded on the built-in compartment  1205 , in a folded configuration, as shown in  FIG. 15 . Also shown in  FIG. 15  is the first and second removable compartments  1210  and  1215  in the unfolded configuration. Although dimensions in inches are shown in  FIG. 15  of the various compartments, it will be understood that the compartments can have any suitable dimensions without departing from the inventive concepts disclosed herein. 
     The overhead luggage bag  1200  is very portable and can securely store items within the organizer in an orderly manner. The built-in compartment  1205  provides an internal access compartment while the removable compartments  1210  and  1215  can be easily deployed and/or separated from each other and from the built-in compartment  1205 . The compartments  1205 ,  1210 , and  1215  can also be configured in a wide variety of ways according to the desires of the user. In a single motion, the luggage bag  1200  can be transformed from limited access to the contents to complete access almost instantaneously while maintaining organization of the contents. Similarly, in another single motion, the compartments can be quickly and conveniently folded back into the outer container  1202  of the overhead luggage bag  1200 . 
     The organizer can be modular such that the compartments  1210  and  1215  can be configured in any desirable manner. For example, one or more compartments (e.g.,  1210  or  1215 ) can be attached and added to the overhead luggage bag  1200 , or one or more compartments (e.g.,  1210  or  1215 ) can be detached and removed from the overhead luggage bag  1200 . This modularity allows the overhead luggage bag  1200  to be configured as desired. The various compartments are foldable one atop the other. The organizer can, thus, take up substantially the entire interior volume of the outer container  1202  or less than the entire interior volume. 
       FIG. 16  illustrates a close-up view of a portion of the overhead luggage bag  1200  of  FIG. 12  including one or more easy-access portals (e.g.,  1605  and  1610 ) through which contents of the luggage bag can be conveniently accessed without fully opening the luggage bag. Some elements shown in  FIG. 16  are described in detail above, and therefore a detailed description of such elements is not necessarily repeated. 
     When in a closed configuration, contents of at least one of the removable compartments (e.g.,  1215 ) can be accessed through an external easy-access portal  1605  without requiring the full opening and deployment of the internal compartments. The external easy-access portal  1605  can be associated with or otherwise pass through an opening in the fourth rigid wall  1275 , through which contents of the second removable compartment  1215  can be accessed while the outer flap  1285  is substantially detached from the fourth rigid wall  1275  and substantially attached to the first and second rigid walls  1260  and  1265 . In addition, the second removable compartment  1215  can include an internal easy-access portal  1610  through which the contents of the second removable compartment  1215  can be accessed. In other words, when the overhead luggage bag  1200  is in an upright position in which the casters or wheels  1295  are in contact with or otherwise substantially facing toward a floor, the outer flap  1285  can be partially unzipped using the one or more zippers  1290  or otherwise disconnected from the fourth rigid wall  1275  and/or partially unzipped using the one or more zippers  1290  or otherwise partially disconnected from the first and second rigid sidewalls  1260  and  1265 , to provide access through the top of the luggage bag  1200  to the internal compartments. Then, the inner access flap  1217  can be partially unzipped using the one or more zippers  1250  or otherwise partially disconnected from one or more sidewalls of the second removable compartment  1215  for simple and convenient access to the items or contents stored within the second removable compartment  1215 . Put differently, contents of the second removable compartment  1215  can be conveniently accessed through the internal easy-access portal  1610  and/or the external easy-access portal  1605 , without unfolding or deploying the compartments from the outer container  1202 . 
       FIG. 17  illustrates an inner access flap  1217  and internal easy-access portal  1610  of a removable compartment  1215  of the overhead luggage bag  1200  of  FIG. 12  in accordance with inventive concepts. Some elements shown in  FIG. 17  are described in detail above, and therefore a detailed description of such elements is not necessarily repeated. The one or more zippers  1250  or other suitable fasteners can be used to partially detach the inner access flap  1217  from one or more sidewalls of the second removable compartment  1215 , thereby opening up the internal easy access portal  1610 . 
       FIG. 18  illustrates an accessory organizer  1805  in a folded configuration in accordance with various inventive concepts of the present invention. The accessory organizer  1805  is a module collapsible accessory organizer for use with a luggage bag (e.g.,  105  of  FIG. 2 ). The accessory organizer includes foldable compartments  505 , a first pull handle or strap  535 , and a second pull handle or strap  540 . The compartments  505  can each be collapsed down when necessary to free up interior volume of the luggage bag in which the accessory organizer is placed, as further explained below. The compartments  505  can each be collapsed down prior to being shipped, which reduces shipping cost because the total volume of the accessory organizer  1805  is significantly reduced. The compartments  505  can stack and fold onto each other, and be inserted into or removed from the luggage bag. The compartments  505  can be attached to each other. The compartments  505  are modular such that the accessory organizer  1805  can be configured to include any desired number of compartments  505 . The compartments  505  of the accessory organizer  1805  are quickly unfolded and deployed for easy visibility and access to personal belongings stored therein, as also explained in more detail below. 
     The accessory organizer  1805  can be a standalone organizer when not stored in the luggage bag. The accessory organizer  1805  can be manufactured and shipped separately as a standalone organizer, and then used with a variety of already-existent luggage bags of various dimensions. Some travelers with larger items prefer an easier way to manipulate the shape, size and configuration of the accessory organizer  1805  within the structure and dimensions of the particular luggage bag itself. Moreover, some travelers prefer that the accessory organizer  1805  fit the particular luggage bag that they currently own and use because they prefer not to purchase an entirely new luggage bag. The accessory organizer  1805  can be made in a variety of sizes so that it can fit the dimensions of the traveler&#39;s particular bag, as also further described below. The accessory organizer  1805  can be constructed of light-weight fabrics and materials so that more personal belongings can be packed in to reduce the chance of any overweight charges being imposed by airline companies. 
       FIG. 19  illustrates the accessory organizer  1805  of  FIG. 18  in the folded configuration with a human hand  1905  engaging with a first pull handle or strap  535 . Each of the compartments  505  can include a flexible material top wall (e.g.,  1217 ).  FIG. 20  illustrates the accessory organizer  1805  of  FIG. 18  in a partially unfolded configuration with the human hand  1905  engaging with the first pull handle or strap  535 . The collapsible compartments  505  can include a first collapsible compartment  505   a , a second collapsible compartment  505   b , and a third collapsible compartment  505   c . It will be understood that while three collapsible compartments are shown, any suitable collapsible compartments can be made part of the accessory organizer without departing from the inventive concepts disclosed herein. The flexible material top wall  1217  of the first collapsible compartment  505   a  can be at least partially removably attached using a first zipper  1250  to at least three collapsible sidewalls from among the first, second, third, and fourth rigid collapsible sidewalls of the first collapsible compartment  505   a . Similarly, this can be the case for the other collapsible compartments (e.g.,  505   b  and  505   c ). 
     For example, as shown in  FIG. 21 , the accessory organizer  1805  can be in another partially unfolded configuration with the human hand  1905  continuing to engage with the first pull handle or strap  535 . The flexible material top wall  1212  of the second collapsible compartment  505   b  can be at least partially removably attached using a second zipper  1255  to at least three collapsible sidewalls from among the first, second, third, and fourth rigid collapsible sidewalls of the second collapsible compartment  505   b . Similarly, the flexible material top wall  1207  of the third collapsible compartment  505   c  can be at least partially removably attached using a third zipper  1209  to at least three collapsible sidewalls from among the first, second, third, and fourth rigid collapsible sidewalls of the third collapsible compartment  505   c . Also shown in  FIG. 21  is a connector  532  located along a region of the flexible material top wall  1207  of the third collapsible compartment  505   c . The connector  532  can include a zipper, a pile tape, a snap, a button, or the like. 
       FIG. 22  illustrates the accessory organizer  1805  of  FIG. 18  in a completely unfolded configuration with the human hand  1905  still engaging with the first pull handle or strap  535 . Some of the reference numerals are described above, and therefore, a detailed description for those is not necessarily repeated. Shown in  FIG. 22  is a connector  530  that is located along a region of a flexible material bottom wall (not shown) of the first collapsible compartment  505   a . The connector  530  can include a zipper, a pile tape, a snap, a button, or the like.  FIG. 23  illustrates the accessory organizer  1805  of  FIG. 18  in the completely unfolded standalone configuration with the human hand  1905  removed from the first pull handle or strap  535 . 
       FIG. 24  illustrates the accessory organizer  1805  of  FIG. 18  in the completely unfolded configuration with the human hand  1905  engaging with a second pull handle or strap  540 . Some of the reference numerals are described above, and therefore, a detailed description for those is not necessarily repeated. When the traveler has finished accessing one or more of the compartments  505 , the traveler can then quickly and easily stack the compartments into a folded configuration by grasping the second pull handle or strap  540  and lifting.  FIG. 25  illustrates the accessory organizer  1805  of  FIG. 18  in a partially folded configuration with the human hand  1905  still engaging with the second pull handle or strap  540 .  FIG. 26  illustrates the accessory organizer  1805  of  FIG. 18  in another partially folded configuration with the human hand engaging  1905  with the second pull handle or strap  540 . The connector  530  can be seen, which connects the first collapsible compartment  505   a  to the second collapsible compartment  505   b .  FIG. 27  illustrates the accessory organizer  1805  of  FIG. 18  back in the completely folded configuration. 
       FIG. 28  illustrates an accessory organizer  1805  in a folded configuration with a top collapsible compartment  505   a  in an open and upright configuration in accordance with various inventive concepts of the present invention. The traveler can gain access to the personal belongings in the top collapsible compartment  505   a  by at least partially detaching the flexible material top wall  1217  from one or more of the rigid collapsible sidewalls  2805  of the top collapsible compartment  505   a . Each of the compartments (e.g.,  505   a ,  505   b ,  505   c , etc.) can include a flexible material bottom wall (e.g.,  2810 ). Some of the reference numerals are described above, and therefore, a detailed description for those is not necessarily repeated.  FIG. 29  illustrates a single compartment  505   a  from the accessory organizer  1805  of  FIG. 28  in a collapsed and closed configuration in accordance with various inventive concepts of the present invention.  FIG. 30  illustrates the single compartment  505   a  from the accessory organizer  1805  of  FIG. 28  in a collapsed and open configuration in accordance with various inventive concepts of the present invention. 
     The first, second, third, and fourth rigid collapsible sidewalls  2805  of the first collapsible compartment  505   a  can include first, second, third, and fourth internal rigid flaps  3005  that are configured in an upright orientation or a flat orientation. In the flat configuration, as shown in  FIG. 30 , the internal rigid flaps  3005  permit the compartment  505   a  to be collapsed into a relatively flat configuration. In this manner, the compartment  505   a  can each be collapsed down when necessary to free up interior volume of the luggage bag (e.g.,  105  of  FIG. 2 ) in which the accessory organizer  1805  may be placed. The compartment  505   a  can be collapsed down prior to being shipped from the manufacturer or supplier to the end customer, which reduces shipping cost because the total volume of the compartments (e.g.,  505   a ) of the accessory organizer  1805  is significantly reduced. Each of the other compartments (e.g.,  505   b ,  505   c , etc.) can be collapsed in a similar manner, i.e., by changing the internal rigid flaps  3005  from an upright configuration to a flat configuration. 
       FIG. 31  illustrates a single compartment  505   a  from the accessory organizer  1805  of  FIG. 28  in a partially collapsed and open configuration in accordance with various inventive concepts of the present invention.  FIG. 32  illustrates a single compartment  505   a  from the accessory organizer  1805  of  FIG. 28  in an upright and open configuration in accordance with various inventive concepts of the present invention. As can be seen, the flexible material top wall  1217  is in a detached and opened configuration. The traveler can change the configuration of the accessory organizer  1805  from the collapsed position to the upright position by standing the individual internal rigid flaps  3005  upright and tucking them behind a seam  3205  as shown in  FIG. 32 . Conversely, the traveler can change the configuration of the accessory organizer  1805  from the upright position to the collapsed position by untucking the individual internal rigid flaps  3005  from behind the seam  3205  as shown in  FIG. 31   
       FIG. 33  illustrates the accessory organizer  1805  of  FIG. 28  in an upright and closed configuration and located within a luggage bag  3305  in accordance with various inventive concepts of the present invention. Some elements shown in  FIG. 17  are described in detail above, and therefore a detailed description of such elements is not necessarily repeated. One or more of the compartments (e.g.,  505   a ,  505   b ,  505   c ) can be in a collapsed configuration. 
     For example, if the traveler is leaving on a trip and does not need to fill all three compartments, then one of the compartments (e.g.,  505   a ) can be collapsed while the other two compartments (e.g.,  505   b  and  505   c ) can be put in an upright configuration. This makes more room within the luggage bag  3305  for larger items. At any time during the trip, the traveler may decide that the compartment  505   a  needs to be occupied with new items, and therefore, the compartment  505   a  can be changed from the collapsed configuration to an upright configuration. In this manner, any number of compartments can be set in the collapsed configuration or the upright configuration depending on the needs of the traveler. 
       FIG. 34  illustrates a plan view of various different accessory organizers (e.g.,  1805 ) having various dimensions in accordance with various inventive concepts of the present invention. For example, the dimensions of the first, second, and third collapsible compartments  505  of the accessory organizer  1805  can be such that they fit within a carry-on luggage bag that is 21 inches long, 16 inches wide, and 9 inches deep. Within the carry-on class of luggage bag, the accessory organizer  1805  can be provided in small, medium, and large versions. In other words, multiple different accessory organizers (e.g.,  1805 ) having different dimensions can be provided, so that travelers can select one or more of the different accessory organizers (e.g.,  1805 ) to be placed within their carry-on luggage bag. 
     By way of another example, the dimensions of the first, second, and third collapsible compartments  505  of the accessory organizer  1805  can be such that they fit within a larger checked-in luggage bag that is 30 inches long, 20 inches wide, and 10 inches deep. Within the checked-in class of luggage bag, the accessory organizer  1805  can be provided in small, medium, and large versions. In other words, multiple different accessory organizers (e.g.,  1805 ) having different dimensions can be provided, so that travelers can select one or more of the different accessory organizers (e.g.,  1805 ) to be placed within their checked-in luggage bag. 
     By way of yet another example, the dimensions of the first, second, and third collapsible compartments  505  of the accessory organizer  1805  can be such that they fit within a rolling duffle luggage bag that is 24 inches long, 14 inches wide, and 10 inches deep. Within the rolling duffle bag class of luggage bag, the accessory organizer  1805  can be provided in small, medium, and large versions. In other words, multiple different accessory organizers (e.g.,  1805 ) having different dimensions can be provided, so that travelers can select one or more of the different accessory organizers (e.g.,  1805 ) to be placed within their rolling duffle luggage bag. 
     By way of still another example, the dimensions of the first, second, and third collapsible compartments  505  of the accessory organizer  1805  can be quite small, such that they accommodate a toiletry kit, for example. By way of another example, the dimensions of the first, second, and third collapsible compartments  505  of the accessory organizer  1805  can be sized to accommodate a cosmetics kit. By way of yet another example, the dimensions of the first, second, and third collapsible compartments  505  of the accessory organizer  1805  can be sized to accommodate an electronics carrier to carry a smart phone, charging cables, tablet, or the like. By way of still another example, the dimensions of the first, second, and third collapsible compartments  505  of the accessory organizer  1805  can be sized to accommodate a tool kit to carry tools such as screw drivers, pliers, hammers, nails, screws, or the like. It will be understood that the accessory organizer  1805  can have any suitable dimensions. 
     Moreover, multiple modular collapsible accessory organizers (e.g.,  1805 ) having various dimensions can be stored in a single luggage bag (e.g.,  3305  of  FIG. 33 ). In other words, different modular collapsible accessory organizers (e.g.,  1805 ) can be mixed and matched in an adaptable and flexible manner such that a traveler&#39;s belongings are well-organized in and easily accessible from the luggage bag (e.g.,  3305  of  FIG. 33 ). 
     Referring now to  FIGS. 18 through 34 , a modular collapsible accessory organizer  1805  for use with a luggage bag  3305  can include first, second, and third collapsible compartments  505   a ,  505   b , and  505   c  each including first, second, third, and fourth rigid collapsible sidewalls  2805 , a flexible material top wall (e.g.,  1217 ), and a flexible material bottom wall  2810 . The modular collapsible accessory organizer  1805  can include a first connector located  530  along one region of the flexible material bottom wall  2810  of the first collapsible compartment  505   a . The modular collapsible accessory organizer  1805  can include a second connector  532  located along another region of the flexible material top wall  1207  of the third collapsible compartment  505   c . The modular collapsible accessory organizer  1805  can include a first pull handle or strap  535  connected to the first collapsible compartment  505   a . The modular collapsible accessory organizer  1805  can include a second pull handle or strap  540  connected to the first collapsible compartment  505   a.    
     The first connector  530  connects the first collapsible compartment  505   a  to the second collapsible compartment  505   b  such that the first connector  530  connects the flexible material bottom wall (e.g.,  2810 ) of the first collapsible compartment  505   a  to the flexible material bottom wall (e.g.,  2810 ) of the second collapsible compartment  505   b . The second connector  532  connects the third collapsible compartment  505   c  to the second collapsible compartment  505   b  such that the second connector  532  connects the flexible material top wall  1207  of the third collapsible compartment  505   c  to the flexible material top wall  1212  of the second collapsible compartment  505   b . The first pull handle or strap  535  is configured to unfold and deploy the first, second, and third collapsible compartments  505   a ,  505   b , and  505   c , respectively. The second pull handle or strap  540  is configured to fold the first, second, and third collapsible compartments  505   a ,  505   b , and  505   c , respectively, one atop the other. The first, second, and third collapsible compartments  505   a ,  505   b , and  505   c , respectively, are configured to unfold one from another when the traveler lifts on the second pull handle or strap  540 . 
     The first, second, and third collapsible compartments  505   a ,  505   b , and  505   c  of the accessory organizer  1805  are entirely insertable into and removable out from the luggage bag  3305 . The flexible material top wall  1217  of the first collapsible compartment  505   a  is at least partially removably attached to one or more other rigid collapsible sidewalls (e.g.,  2805 ) from among the first, second, third, and fourth rigid collapsible sidewalls (e.g.,  2805 ) of the first collapsible compartment  505   a . The flexible material bottom wall (e.g.,  2810 ) and the first, second, third, and fourth rigid collapsible sidewalls (e.g.,  2805 ) of the first compartment  505   a  can be substantially opaque. The first, second, third, and fourth rigid collapsible sidewalls (e.g.,  2805 ) of the second collapsible compartment  505   b  are separate and spaced apart from the first and third collapsible compartments  505   a  and  505   c , respectively. The flexible material top wall  1212  of the second collapsible compartment  505   b  is at least partially removably attached to one or more other rigid collapsible sidewalls from among the first, second, third, and fourth rigid collapsible sidewalls (e.g.,  2805 ) of the second collapsible compartment  505   b . The flexible material bottom wall (e.g.,  2810 ) and the first, second, third, and fourth rigid collapsible sidewalls (e.g.,  2805 ) of the second compartment  505   b  can be substantially opaque. The first, second, third, and fourth rigid collapsible sidewalls (e.g.,  2805 ) of the third collapsible compartment  505   c  are separate and spaced apart from the first and second collapsible compartments  505   a  and  505   b , respectively. 
     In some embodiments, the flexible material top wall  1207  of the third collapsible compartment  505   c  is at least partially removably attached to one or more other rigid collapsible sidewalls from among the first, second, third, and fourth rigid collapsible sidewalls (e.g.,  2805 ) of the third collapsible compartment  505   c . The flexible material bottom wall (e.g.,  2810 ) and the first, second, third, and fourth rigid collapsible sidewalls (e.g.,  2805 ) of the third compartment  505   c  can be substantially opaque. 
     In some embodiments, the first pull handle or strap  535  is connected at an end of the accessory organizer in a first region including the flexible material top wall  1217  and the first rigid collapsible sidewall (e.g.,  2805 ) of the first collapsible compartment  505   a . The second pull handle or strap  540  can be connected in a second region including the flexible material top wall  1217  and the second rigid collapsible sidewall (e.g.,  2805 ) opposite the first rigid collapsible sidewall (e.g.,  2805 ) of the first collapsible compartment  505   a.    
     In some embodiments, the second pull handle or strap  540  is disposed between the first collapsible compartment  505   a  and the second collapsible compartment  505   b . In some embodiments, the second pull handle or strap  540  is disposed directly opposite the first connector  530  relative to the second rigid collapsible sidewall (e.g.,  2805 ) of the first collapsible compartment  505   a.    
     The second pull handle or strap  540  is configured to be lifted such that the first collapsible compartment  505   a  is configured to be folded on the second collapsible compartment  505   b , and the second collapsible compartment  505   b  is configured to be folded on the third collapsible compartment  505   c , in a folded configuration. In the folded configuration, the first and third collapsible compartments  505   a  and  505   c , respectively, are in an upright orientation, and the second collapsible compartment  505   b  is in an inverted orientation. 
     In some embodiments, the first, second, third, and fourth rigid collapsible sidewalls (e.g.,  2805 ) of the first collapsible compartment  505   a  includes first, second, third, and fourth internal rigid flaps  3005  that can be configured in at least one of an upright orientation or a flat orientation. The first, second, third, and fourth rigid collapsible sidewalls (e.g.,  2805 ) of the second collapsible compartment  505   b  includes first, second, third, and fourth internal rigid flaps (e.g.,  3305 ) that can be configured in at least one of an upright orientation or a flat orientation. The first, second, third, and fourth rigid collapsible sidewalls (e.g.,  2805 ) of the third collapsible compartment  505   c  includes first, second, third, and fourth internal rigid flaps (e.g.,  3305 ) that can be configured in at least one of an upright orientation or a flat orientation. 
       FIG. 35  illustrates a pack bag  3505  including an outer container  3515  and an inner removable accessory organizer  3510  in accordance with various inventive concepts of the present invention. The term “pack bag” as used herein may comprise a luggage bag, a backpack, a daypack, a briefcase, a messenger bag, a gadget bag, a satchel, a laptop bag, a duffle, a gym bag, a purse, a handbag, a beach bag, a toiletry bag, a make-up (i.e., cosmetic) bag, or the like. 
     The inner removable accessory organizer  3510  can include a first pull handle  535  attached to a first side edge  3520  thereof, and a second pull handle  540  attached to a second side edge  3525  thereof. The first side edge  3520  can be opposite the second side edge  3525 . The first pull handle  535  and the second pull handle  540  can be configured to be simultaneously pulled such that the inner removable accessory organizer  3510  is liftable out of the outer container  3515 . 
       FIG. 36  illustrates the pack bag  3505  of  FIG. 35  with the inner accessory organizer  3510  removed from the outer container  3515  in accordance with various inventive concepts of the present invention. The inner removable accessory organizer  3510  can be entirely insertable into and removable out from the outer container  3515  using the pull handles  535  and  540 . 
     The outer container  3515  can include a plurality of casters (e.g.,  3615 ) attached to a bottom wall  3655  thereof. The outer container  3515  can include a main flap section  3635  and a main body section  3660 . The main flap section  3635  can be attached to and partially detached from the main body section  3660  using a connection means such as a zipper. The main flap section  3635  can have the approximate width and length dimensions as a front side of the main body section  3660 . The main flap section  3635  can include one or more envelopes or pockets (e.g.,  3640  and  3645 ) disposed therein. An interior region  3625  of the main body section  3660  can include one or more retaining straps  3630  disposed therein. The main body section  3660  can include a grab handle  3620  attached to a top wall  3665  thereof, and a second grab handle  3650  attached to the bottom wall  3655  thereof. 
     In some embodiments, the outer container  3515  includes dimensions of a carry-on bag, when for example, traveling on an airplane. Alternatively, the outer container  3515  includes dimensions of a checked-in pack bag. 
       FIG. 37  illustrates the inner removable accessory organizer  3510  of  FIG. 35  as a single bundled unit in accordance with various inventive concepts of the present invention. The inner removable accessory organizer  3510  can include a first compartment  3715 , a second compartment  3720 , and a third compartment  3730 . The second compartment  3720  can be removably attached to the first compartment  3715  using, for example, connection means such as a zipper  3750 . Other suitable connection means can include Velcro®, one or more buttons, one or more snaps, or the like. The third compartment  3730  can be removably attached to the first compartment  3715  using, for example, connection means such as a zipper  3755  or other suitable connection means mentioned above. 
     The first compartment  3715  is configured to be sandwichable between the second compartment  3720  and the third compartment  3730  of the inner removable accessory organizer  3510 . The second compartment  3720  of the inner removable accessory organizer  3510  includes the first pull handle  535  attached to the first side edge  3520  thereof, and a second pull handle  540  attached to the second side edge  3525  thereof. 
     The inner removable accessory organizer  3510  can include one or more bundle straps (e.g.,  3705 ) attached to the second compartment  3720  and the third compartment  3730  of the inner removable accessory organizer  3510 . The one or more bundle straps (e.g.,  3705 ) are configured to hold the first compartment  3715 , the second compartment  3720 , and the third compartment  3730  together as a single bundled unit. 
     More specifically, the inner removable accessory organizer  3510  can include a first bundle strap  3705  attached to a third side edge  3770  of the second compartment  3720 . The inner removable accessory organizer  3510  can include a second bundle strap (not shown, but the same as or similar to the bundle strap  3705 ) attached to a fourth side edge (opposite the third side edge  3770 ) of the second compartment  3720 . In other words, the second bundle strap is located on an opposite side of the inner removable accessory organizer  3510  relative to the first bundle strap  3705 . The first bundle strap  3705  can be attached to a side edge  3775  of the third compartment  3730  of the inner removable accessory organizer  3510 . Similarly, the second bundle strap (not shown) can be attached to a side edge (not shown) that is opposite to the side edge  3775  of the third compartment  3730  of the inner removable accessory organizer  3510 . The first bundle strap  3705  and the second bundle strap (not shown) are configured to hold the first compartment  3715 , the second compartment  3720 , and the third compartment  3730  of the inner removable accessory organizer together as the single bundled unit  3510 . 
     In some embodiments, the first bundle strap  3705  includes a first section  3780  and a second section  3785 . The first bundle strap  3705  can include fastening means (e.g.,  3710 ) for fastening the first section  3780  to the second section  3785  of the first bundle strap  3705 . The fastening means (e.g.,  3710 ) can include, for example, a quick release buckle. Other suitable fastening means  3710  can include a traditional buckle, Velcro®, one or more buttons, one or more snaps, or the like. The second bundle strap (not shown) can also including a first section and a second section, and can further include the fastening means. The second bundle strap (not shown) can be essentially identical to the first bundle strap  3705 , but located on the opposite side of the inner removable accessory organizer  3510 . Accordingly, the three compartments can be quickly and easily consolidated into one bundled unit that is efficient to pack and transport. 
     After unfastening the fastening means  3710  of each of the bundle straps (e.g.,  3705 ), the inner removable accessory organizer  3510  can be unfolded. The first pull handle  535  is configured to unfold and deploy the first compartment  3715 , the second compartment  3720 , and the third compartment  3730 , as shown for example, in  FIGS. 19 to 22  described above. The second pull handle  540  is configured to fold the first compartment  3715 , the second compartment  3720 , and the third compartment  3730 , as shown for example, in  FIGS. 23 to 27  described above. Put differently, the first, second, and third compartments (e.g.,  3715 ,  3720 , and  3730 ) of the inner removable accessory organizer  3510  are configured to unfold and be unbundled one from another when the bundle straps (e.g.,  3705 ) are unfastened. In some embodiments, the pull handles  535  and  540  can be color-coded. For example, the pull handle  535  can be green, and the pull handle  540  can be red. It will be understood that other suitable colors can be used. 
     In some embodiments, the first, second, and third compartments (e.g.,  3715 ,  3720 , and  3730 ) of the inner removable accessory organizer  3510  are collapsible, as shown for example, in  FIGS. 28 to 32  described above. More specifically, the first compartment  3715  can include first, second, third, and fourth rigid collapsible sidewalls (e.g.,  3005  of  FIG. 30 ), and a flexible material top wall (e.g.,  1217  of  FIG. 30 ) that is at least partially removably attached to one or more other walls of the first compartment  3715 . Similarly, the second compartment  3720  can include first, second, third, and fourth rigid collapsible sidewalls (e.g.,  3005  of  FIG. 30 ), that are separate and spaced apart from the first compartment  3715  and the third compartment  3730 . The second compartment  3720  can include a flexible material top wall (e.g.,  1217  of  FIG. 30 ) that is at least partially removably attached to one or more other walls of the second compartment  3720 . The third compartment  3730  can include first, second, third, and fourth rigid collapsible sidewalls (e.g.,  3005  of  FIG. 30 ) that are separate and spaced apart from the first compartment  3715  and the second compartment  3720 . The third compartment  3730  can include a flexible material top wall (e.g.,  1217  of  FIG. 30 ) that is at least partially removably attached to one or more other walls of the third compartment  3730 . The top wall of the third compartment  3730  is at least partially removably attached to one or more other walls of the third compartment  3730 . The flexible top walls of the compartments may include a mesh material. 
     In some embodiments, the flexible material top wall of the first collapsible compartment  3715  is at least partially removably attached using one or more zippers (e.g.,  3735 ) to at least three collapsible sidewalls from among the first, second, third, and fourth rigid collapsible sidewalls of the first collapsible compartment  3715 . Similarly, the flexible material top wall of the second collapsible compartment  3720  is at least partially removably attached using one or more zippers  3740  to at least three collapsible sidewalls from among the first, second, third, and fourth rigid collapsible sidewalls of the second collapsible compartment  3720 . Similarly, the flexible material top wall of the third collapsible compartment  3730  is at least partially removably attached using one or more zippers  3745  to at least three collapsible sidewalls from among the first, second, third, and fourth rigid collapsible sidewalls of the third collapsible compartment  3730 . The internal rigid flaps of each of the compartments can be configured in an upright orientation when in use, or a flat orientation when collapsed and not in use. 
     More specifically, the first pull handle  535  can unfold and deploy the first, second, and third compartments (e.g.,  3715 ,  3720 , and  3730 ) when the first section  3780  and the second section  3785  of the first bundle strap  3705  are unfastened, and when the first section and the second section of the second bundle strap (not shown) are unfastened. The second pull handle  540  can fold the first, second, and third compartments (e.g.,  3715 ,  3720 , and  3730 ) one atop the other when the first section  3780  and the second section  3785  of the first bundle strap  3705  are unfastened, and when the first section and the second section of the second bundle strap (not shown) are unfastened. The first bundle strap  3705  and the second bundle strap (not shown) are configured to hold the first compartment  3715 , the second compartment  3720 , and the third compartment  3730  together as a single bundled unit  3510  when the first section  3780  and the second section  3785  of the first bundle strap  3705  are fastened, and when the first section and the second section of the second bundle strap (not shown) are fastened. The first pull handle  535  and the second pull handle  540  are configured to be simultaneously pulled such that the first, second, and third compartments (e.g.,  3715 ,  3720 , and  3730 ) are liftable as the single bundled unit  3510  when the first section  3780  and the second section  3785  of the first bundle strap  3705  are fastened, and when the first section and the second section of the second bundle strap (not shown) are fastened. 
       FIG. 38  illustrates a top view of the pack bag  3505  of  FIG. 35 . The outer container  3515  can include a telescoping handle  3810 . The top wall  3665  of the pack bag  3505  can include the grab handle  3520  attached thereto. The pack bag  3505  can include an external easy-access portal  3815  associated with the outer container  3515  through which contents of at least one of the first compartment  3715  or the second compartment  3720  of the inner removable accessory organizer  3510  are accessible. The external easy-access portal  3815  can include a portal flap  3835  that is partially removably attached to the outer container  3515 , and partially permanently attached to the outer container  3515 . For example, the external easy-access portal  3815  can be permanently attached along one edge  3840  thereof, and partially removably attached along other edges thereof using, for example, connection means such as a zipper  3820 . Other suitable connection means can include Velcro®, one or more buttons, one or more snaps, or the like. The first external easy-access portal  3815  is associated with the top wall  3665  of the outer container  3515  that is opposite the bottom wall (e.g.,  3655  of  FIG. 36 ). The external easy-access portal  3815  provides quick and easy access to contents of the inner removable accessory organizer  3510 , as further explained below. 
     The pack bag further  3505  can further include a second external easy-access portal  3825  associated with the outer container  3515  through which contents of the second compartment  3720  of the inner removable accessory organizer  3510  are accessible. The contents of the first compartment  3715  of the inner removable accessory organizer  3510  can be accessible through the first external easy-access portal  3815 . The second external easy-access portal  3825  can include one or more zippers (e.g.,  3830 ) to separate and unite the main flap section  3635  of the outer container  3515  from and to the main body section  3660  of the outer container  3515 . The second external easy-access portal  3825  can be associated with the top wall  3665  of the outer container  3515 . For example, both the first easy-access portal  3815  and the second easy-access portal  3825  can be accessed in an area of the top wall  3665  of the outer container  3515 . Accordingly, both the first external easy-access portal  3815  and the second external easy-access portal  3825  provides quick and easy access to contents of the inner removable accessory organizer  3510 , as further explained below. 
       FIG. 39  illustrates the first easy-access portal  3815  in the top wall  3665  of the outer container  3515  of the pack bag  3505  of  FIG. 35  through which contents of the first compartment  3715  of the inner removable accessory organizer  3510  are accessible. For example, a user can unzip the first easy-access portal  3815  using the zipper  3820 , which gives aligned access to the first compartment  3715  of the inner removable accessory organizer  3510 . The user can then unzip the first compartment  3715  of the inner removable accessory organizer  3510  using the zipper  3735 , thereby gaining access to the inside of the first compartment  3715 . The zipper  3735  provides an internal easy-access portal to the inside of the first compartment  3715 . This can be done quickly and easily without needing to completely open up the pack bag  3505 . Some of the components of the pack bag  3505  are described above, and therefore, a detailed description of some of the reference numerals is not repeated. 
       FIG. 40  illustrates the second easy-access portal  3825  associated with the pack bag  3505  of  FIG. 35  through which contents of the second compartment  3720  of the inner removable accessory organizer  3510  are accessible. For example, a user can unzip the second easy-access portal  3825  using the zipper  3830 , which gives aligned access to the second compartment  3720  of the inner removable accessory organizer  3510 . The user can then unzip the second compartment  3720  of the inner removable accessory organizer  3510  using the zipper  3740 , thereby gaining access to the inside of the second compartment  3720 . The zipper  3740  provides an internal easy-access portal to the inside of the second compartment  3720 . This can be done quickly and easily without needing to completely open up the pack bag  3505 . The flexible material top walls of each of the compartments and their associated zipper closures can be oriented so that they are conveniently and quickly accessed via the easy-access portal  3815  and/or the easy-access portal  3825 . 
       FIG. 41  illustrates a top view of the inner removable accessory organizer  3510  of  FIG. 35 . This view shows the second compartment  3720  being accessed by unzipping the zipper  3740 , and pulling down on the flexible material top wall  4110  so that contents can be stored or removed from the second compartment  3720  as shown at  4105 . A similar procedure can be used to access the contents of the first compartment  3715  and the third compartment  3730  of the inner removable accessory organizer  3510 . Alternatively, when the inner removable accessory organizer  3510  is removed from the outer container  3515 , the flexible material top wall  4110  can be unzipped all the way using the zipper  3740  so that all of the contents of the second compartment  3720  can be seen and easily removed or replaced. This access technique can also be used with the other compartments of the inner removable accessory organizer  3510 . 
       FIG. 42  illustrates a plan view of a carry-on sized pack bag  4200  including an outer container  4205  and an inner removable accessory organizer  4210  in accordance with various inventive concepts of the present invention. It will be understood that for the sake of illustration, the outer container  4205  is transparent so that the inside of the outer container  4205  can be observed. In other words, the outer container  4205  need not actually be transparent. The inner removable accessory organizer  4210  can occupy some of or all of the internal space of the outer container  4205 . 
       FIG. 43  illustrates a side elevation view of the pack bag  4200  of  FIG. 42  including multiple upright compartments  4215  of the inner removable accessory organizer  4210  in accordance with various inventive concepts of the present invention. The upright compartments  4215  can include, for example, compartment  4212 , compartment  4220 , and compartment  4230 . It will be understood that the compartments  4215  can include four, five, six, seven, eight, or more than eight compartments. One or more of the compartments  4215  can be collapsed so that only a portion of items stored in the pack bag  4200  is organized within the one or more compartments  4215 , while another portion of the items can be placed inside the pack bag  4200  in a free or less-organized manner. The portions of the items that are placed inside the pack bag  4200  but outside of the one or more compartments  4215  may be packed in such a way due to their shape or size. In other words, some items might not fit within the one or more compartments  4215 , and thus may be packed into the pack bag  4200  outside of the one or more compartments  4215 . 
       FIG. 44  illustrates a side elevation view of the pack bag  4200  of  FIG. 42  including multiple upright compartments (e.g.,  4212  and  4220 ) and a single collapsed compartment (e.g.,  4230 ) of the inner removable accessory organizer  4210 , along with an item  7235  outside of the inner removable accessory organizer  4210  but inside of the outer container  4205  in accordance with various inventive concepts of the present invention. In this example configuration, the compartments  4212  and  4220  are in an upright configuration, while the compartment  4230  is in a collapsed configuration. Accordingly, approximately one third (⅓) of the space originally occupied within the outer container  4205  by the inner removable accessory organizer  4210  when in an entirely upright configuration is available to store one or more items  4235  that are located outside of the inner removable accessory organizer  4210 . And approximately two thirds (⅔) of the space originally occupied within the outer container  4205  by the inner removable accessory organizer  4210  when in an entirely upright configuration remains available to store other items (not shown) in an organized fashion within the remaining two upright compartments  4212  and  4220  of the inner removable accessory organizer  4210 . 
     As used herein, the term “originally occupied” means a state in which the inner removable accessory organizer  4210  has all of its compartments in an upright (i.e., not collapsed) configuration. It will be understood that this term is simply used to communicate that state in a simpler form, and does not require a user of the pack bag  4200  to begin with all compartments in an upright state. In other words, the user of the pack bag  4200  may begin with only one or two of the compartments in an upright configuration, and one of the compartments in a collapsed configuration, and may at some later point raise the one collapsed configuration to the upright configuration, or vice versa. Any suitable combination of upright and collapsed compartment configurations can be exploited by the user. 
       FIG. 45  illustrates a side elevation view of the pack bag  4200  of  FIG. 42  including one upright compartment  4212  and multiple collapsed compartments (e.g.,  4230  and  4220 ) of the inner removable accessory organizer  4210 , along with multiple items (e.g.,  4235  and  4240 ) outside of the inner removable accessory organizer  4210  but inside of the outer container  4205  in accordance with various inventive concepts of the present invention. 
     In this example configuration, the compartment  4212  is in an upright configuration, while the compartments  4220  and  4230  are in a collapsed configuration. Accordingly, approximately two thirds (⅔) of the space originally occupied within the outer container  4205  by the inner removable accessory organizer  4210  when in an entirely upright configuration is available to store one or more items (e.g.,  4235  and  4240 ) that are located outside of the inner removable accessory organizer  4210 . And approximately one third (⅓) of the space originally occupied within the outer container  4205  by the inner removable accessory organizer  4210  when in an entirely upright configuration remains available to store other items (not shown) in an organized fashion within the remaining one upright compartment  4212  of the inner removable accessory organizer  4210 . 
       FIG. 46  illustrates a side elevation view of the pack bag  4200  of  FIG. 42  including no upright compartments and multiple collapsed compartments (e.g.,  4212 ,  4220 , and  4230 ) of the inner removable accessory organizer  4210 , along with multiple items (e.g.,  4245  and  4250 ) outside of the inner removable accessory organizer  4210  but inside of the outer container  4205  in accordance with various inventive concepts of the present invention. 
     In this example configuration, all of the compartments  4215  are in a collapsed configuration. Accordingly, substantially all of the space originally occupied within the outer container  4205  by the inner removable accessory organizer  4210  when in an entirely upright configuration is available to store one or more items (e.g.,  4245  and  4250 ) that are located outside of the inner removable accessory organizer  4210 . The collapsed compartments  4215  of the inner removable accessory organizer  4210  take up minimal space within the outer container  4205  such that many items can be stored in the pack bag  4200  in a free or less-organized fashion. The one or more items (e.g.,  4245  and  4250 ) that are located outside of the inner removable accessory organizer  4210  but still within the pack bag  4200  may be packed in such a way due to their shape or size. In other words, the one or more items (e.g.,  4245  and  4250 ) might not fit within the one or more compartments  4215 , and thus may be packed into the pack bag  4200  outside of the one or more compartments  4215 . 
       FIG. 47  illustrates a plan view of a checked-in-sized pack bag  4700  including an outer container  4705  and a full-size inner removable accessory organizer  4710  in accordance with various inventive concepts of the present invention. As used herein, the term “full-size” means that the inner removable accessory organizer  4710  when in a fully upright configuration occupies substantially all of the space within the outer container  4705 . It will be understood that for the sake of illustration, the outer container  4705  is transparent so that the inside of the outer container  4705  can be observed. In other words, the outer container  4705  need not actually be transparent. The inner removable accessory organizer  4710  can occupy some of or all of the internal space of the outer container  4705  depending on whether it is in an upright or collapsed configuration. 
       FIG. 48  illustrates a side elevation view of the pack bag  4700  of  FIG. 47  including multiple upright compartments  4715  of the inner removable accessory organizer  4710  in accordance with various inventive concepts of the present invention. The upright compartments  4715  can include, for example, compartment  4712 , compartment  4720 , and compartment  4730 . It will be understood that the compartments  4715  can include four, five, six, seven, eight, or more than eight compartments. One or more of the compartments  4715  can be collapsed so that only a portion of items stored in the pack bag  4700  is organized within the one or more compartments  4715 , while another portion of the items can be placed inside the pack bag  4700  in a free or less-organized manner. The portion of items stored in a free or less-organized manner may be packed in such a way due to their shape or size. 
       FIG. 49  illustrates a plan view of a checked-in-sized pack bag  4700  including an outer container  4705  and two half-size inner removable accessory organizers (e.g.,  4735  and  4740 ) in accordance with various inventive concepts of the present invention. As used herein, the term “half-size” means that the inner removable accessory organizer  4710  when in a fully upright configuration occupies substantially half of all of the space within the outer container  4705 . It will be understood that for the sake of illustration, the outer container  4705  is transparent so that the inside of the outer container  4705  can be observed. In other words, the outer container  4705  need not actually be transparent. The inner removable accessory organizer  4710  can occupy some of or all of the internal space of the outer container  4705  depending on whether it is in an upright or collapsed configuration. 
       FIG. 50  illustrates a plan view of the pack bag  4700  of  FIG. 49  including the outer container  4705  and only a single half-size inner removable accessory organizer  4735 , along with multiple items (e.g.,  5005  and  5010 ) outside of the single half-size inner removable accessory organizer  4735  but inside of the outer container  4705  in accordance with various inventive concepts of the present invention. In this example configuration, the single half-size inner removable accessory organizer  4735  can be in a fully upright configuration (i.e., all of the compartments upright) while still having space for multiple items (e.g.,  5005  and  5010 ) to be stored in a free or less-organized fashion within the outer container  4705 . The multiple items (e.g.,  5005  and  5010 ) may be stored in the free or less-organized fashion due to their particular shape or size, which may not be accommodated by any of the inner removable accessory organizers. In an alternate configuration, one or more of the compartments of the single half-size inner removable accessory organizer  4735  are in a collapsed configuration, thereby providing even more space for other items to be stored in a free or less-organized fashion. 
       FIG. 51  illustrates a side elevation view of the pack bag  4700  of  FIG. 49  including the outer container  4705  and the multiple half-size inner removable accessory organizers (e.g.,  4735  and  4740 ), along with multiple items (e.g.,  5105 ) located atop the multiple half-size inner removable accessory organizers (e.g.,  4735  and  4740 ) but inside of the outer container  4705  in accordance with various inventive concepts of the present invention. In this example configuration, the multiple half-size inner removable accessory organizers (e.g.,  4735  and  4740 ) can be in a fully upright configuration (i.e., all of the compartments upright) while still having space for multiple items (e.g.,  5105 ) to be stored in a free or less-organized fashion within the outer container  4705 . The multiple items (e.g.,  5105 ) that are stored in the free or less-organized fashion may be stored in such fashion due to their particular size or shape. In an alternate configuration, one or more of the compartments of either or both of the multiple half-size inner removable accessory organizers (e.g.,  4735  and  4740 ) are in a collapsed configuration, thereby providing even more space for other items to be stored in a free or less-organized fashion. 
       FIG. 52  illustrates a side elevation view of the pack bag  4700  of  FIG. 49  including the outer container  4705  and only one half-size inner removable accessory organizer  4735 , along with multiple items (e.g.,  5010 ) located adjacent to the half-size inner removable accessory organizer  4735  but inside of the outer container  4705  in accordance with various inventive concepts of the present invention. In this example configuration, the single half-size inner removable accessory organizer  4735  can be in a fully upright configuration (i.e., all of the compartments upright) while still having space for multiple items (e.g.,  5010 ) to be stored in a free or less-organized fashion within the outer container  4705 . The multiple items (e.g.,  5010 ) may be stored in such manner due to their size or shape. In an alternate configuration, one or more of the compartments of the single half-size inner removable accessory organizer  4735  are in a collapsed configuration, thereby providing even more space for other items to be stored in a free or less-organized fashion. 
       FIG. 53  illustrates a plan view of a pack bag  5300  including an outer container  5305  and three part-size inner removable accessory organizers (e.g.,  5310 ,  5315 , and  5320 ) in accordance with various inventive concepts of the present invention. 
     As used herein, the term “part-size” means that each of the inner removable accessory organizers (e.g.,  5310 ,  5315 , and  5320 ) when in a fully upright configuration occupies a part of all of the space within the outer container  5305 . It will be understood that for the sake of illustration, the outer container  5305  is transparent so that the inside of the outer container  5305  can be observed. In other words, the outer container  5305  need not actually be transparent. The inner removable accessory organizers (e.g.,  5310 ,  5315 , and  5320 ) can occupy some of or all of the internal space of the outer container  5705  depending on whether each is in an upright or collapsed configuration. 
       FIG. 54  illustrates a side elevation view of the pack bag  5300  of  FIG. 53  including a first inner removable accessory organizer  5315  in a partially collapsed configuration, a second inner removable accessory organizer  5320  in a fully collapsed configuration, and a third inner removable accessory organizer  5310  in an upright configuration, along with multiple items (e.g.,  5005  and  5010 ) located atop the partially collapsed inner removable accessory organizer  5315  and the collapsed inner removable accessory organizer  5320 , but inside of the outer container  5305  in accordance with various inventive concepts of the present invention. 
     In this example embodiment, the inner removable accessory organizer  5310  can be in a fully upright configuration (i.e., all compartments upright). The inner removable accessory organizer  5315  can be in a partially collapsed configuration. And the inner removable accessory organizer  5320  can be in a fully collapsed configuration. It will be understood that any suitable combination of collapsed and upright compartments can be used, such that the pack bag  5300  is highly adaptable to the needs of the user. 
     Having described and illustrated the principles of the invention with reference to illustrated embodiments, it will be recognized that the illustrated embodiments can be modified in arrangement and detail without departing from such principles, and can be combined in any desired manner And although the foregoing discussion has focused on particular embodiments, other configurations are contemplated. In particular, even though expressions such as “according to an embodiment of the invention” or the like are used herein, these phrases are meant to generally reference embodiment possibilities, and are not intended to limit the invention to particular embodiment configurations. As used herein, these terms can reference the same or different embodiments that are combinable into other embodiments. 
     Consequently, in view of the wide variety of permutations to the embodiments described herein, this detailed description and accompanying material is intended to be illustrative only, and should not be taken as limiting the scope of the invention. What is claimed as the invention, therefore, is all such modifications as may come within the scope and spirit of the following claims and equivalents thereto.