Patent Publication Number: US-9903135-B1

Title: Rainwear-shelter with attachable perimeters

Description:
BACKGROUND OF THE INVENTIONS 
     1. Technical Field 
     The present inventions relate to rainwear, capes, tents, shelters and other outdoor devices, and, more particularly, relate to rainwear convertible into a bivy sack like shelter. 
     2. Description of the Related Art 
     Tents and other temporary shelters are used since prehistoric times in a number of outdoor activities. 
     Generally, for protection from the elements, a tent could be used in only one way—by setting up the one shelter it is designed for. This is the reason the tent is not an item of the everyday life. On average, it is used few days per year, and sometimes, not every year. 
     Sometimes on a solo backpacking expedition, where the gear weight is a critical feature, it happens so that a person has to take with him, or her, the three person family tent, which he or she already owns. One way to avoid carrying extra weight would be the buying of yet another non-basic, single function product—the lighter single person tent. 
     On the other hand, people use other, somehow related, products such as jackets, umbrellas, bicycle/moped covers, which serve functions related to the tent&#39;s function—protection from the elements. All these, including the tents themselves, are examples of non-basic, specialized, one-function products. 
     Many inventions attempt to close this gap of ineffectiveness by the combination of two functions into a single, but more complex product. 
     During outdoor activities like hiking, people carry along garments, tents and other to keep them dry in case of rain. Since these articles may not be needed simultaneously, it makes sense to save bulk and weight by combining them and their functions into one, multifunctional item. 
     A rainwear-tent must be lightweight and use minimum fabric, but still provide sufficient volume around its user&#39;s arm and shoulders. To provide waterproofness, it must have minimum piercing of the fabric. It must also have simple construction and be easy to operate. 
     Attempts to combine rain gear and tents date way back in time and the most widely used design is a rectangular rain poncho tarp with an opening near the middle for the head to pass through. To create a shelter, one or two of these ponchos are connected and pitched in an A-shaped tent, e.g. Swan in U.S. Pat. No. 1,193,443. This design, and the many others like it, is not frame supported and is unstable in the wind. 
     Asher&#39;s U.S. Pat. No. 4,703,521 design is frame supported, thus wind resistant, but it does not provide a floor. 
     Because a tent floor is of no less importance than a tent ceiling, the tent must also provide a completely enclosed compartment, including a floor. 
     Yih et al in U.S. Pat. No. 5,217,034 uses the basic, rectangular rain poncho as the top of a bivouac sack. Essentially, the bivy provides the floor of the tent, while the poncho provides the ceiling. This construction does not provide the options for choosing insulation according to the season, which a typical tent-sleeping bag combination would give, unless the user has multiple bases and tops at hand. 
     The shelter-tent design should be kept simple and the mattress and sleeping bag functions should be outsourced to other camping gear. 
     Asher et al in U.S. Pat. No. 4,484,362 provides tent floor by folding and zipping the opposing edges of the fabric, thus wrapping it around the user&#39;s sleeping bag. The poncho design requires cuttings in the fabric for the head, thus compromising the water resistance. Other designs have cutting in the fabric not only for the head, but for the hands too, e.g. Stacy in U.S. Pat. No. 719,899. 
     Even piercings in the middle of the fabric, like Achuff in U.S. Pat. No. 5,769,106, could and should be avoided. 
     Instead a poncho, a cape-like piece of fabric, with designated areas at the periphery for the head and limbs, would avoid the need for cutting in the fabric. McGrath in U.S. Pat. No. 2,659,086 suggests a design which, although has cuts in the fabric for openings for the hands, is essentially a cape, usable as a shelter, which completely encloses the user&#39;s body. The design requires size adjustment since the length of the rainwear is longer than the user&#39;s height. When the user walks, the extra-long part is folded and attached, which requires piercing. In this design the shelter and the raincoat utilizations are in the same line or direction. 
     The already mentioned Asher et al in U.S. Pat. No. 4,484,362 eliminates the need for size adjustment. When his design is used as a poncho, its length is cut in halve, while when used as a poach-like type of shelter, the full length of the fabric is used, but because it is a poncho, as discussed above, it has a cut in the fabric for the head. 
     A theoretical shape could be derived from the two previous—a similar one to Till in U.S. Pat. No. 2,268,317. This is a polygonal shape, with one longer and one shorter dimensions. The shorter side would facilitate the cape use, not reaching the ground, and having no cuttings or piercing in the fabric what so ever. The device is then turned 90 degrees, or to its longer side, when constructing a shelter. This design, however, does not wrap around user&#39;s sleeping bag, thus does not provide a floor and it has excess of fabric at unnecessary places. 
     Kokus in U.S. Pat. No. 6,341,379 teaches about a squared hooded piece of fabric, with zippers at its diagonal with hood in the middle of it. When folded at this diagonal, this piece of fabric forms a triangular poncho. Theoretically, when turned 90 degrees this shape could be used to be wrapped around user&#39;s sleeping bag but the design does not provide for it since there are no ways to connect the periphery around the hood with other parts of the periphery. 
     All these are examples of proposals for products with one or few functions, but which still fail to address a vast majority of outdoor needs. Of course, there are always tradeoffs and probably there will never be discovered a device which could solve all outdoor issues. 
     Todorov in a Bulgarian patent application filed on Apr. 10, 1998 and published in the Official Gazette of the Patent Office of the Republic of Bulgaria as BG 102381A on Nov. 30, 1999, showed a circularly shaped rain poncho, which when folded symmetrically, constructs a shelter by closing opposing zippers at its periphery. The construction does provide a floor, but uses too much fabric, which adds weight. 
     A modular, truly versatile shelter system, which has more than one generic item, would better adjust to the user&#39;s needs. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present inventions are illustrated by way of example and are not limited by the accompanying figures, in which like references indicate similar elements. Elements in the figures are illustrated for simplicity and clarity and have not necessarily been drawn to scale. 
       The details of the preferred embodiments will be more readily understood from the following detailed description when read in conjunction with the accompanying drawings wherein: 
         FIG. 1  illustrates a perspective view of a hoop type enclosed compartment according to one embodiment of the present inventions; 
         FIG. 2  illustrates a top view of the hoop type enclosed compartment according to one embodiment of the present inventions; 
         FIG. 3  illustrates a flat view of two semi-circled bottom fabrics for the hoop type enclosed compartment, according to one embodiment of the present inventions; 
         FIG. 4  illustrates a flat view of an upper piece making up the tent canopy, namely the ceiling and parts of walls—of the hoop type enclosed compartment according to one embodiment of the present inventions; 
         FIG. 5  and  FIG. 6  illustrates diagrams of examples of an open-end type zipper, in both an open positon and a closed positon according to embodiments of the present inventions; 
         FIG. 7  and  FIG. 8  illustrates diagrams of an example of a closed-end type zipper, in both an open positon and a closed positon; according to embodiments of the present inventions; 
         FIG. 9  and  FIG. 10  illustrates diagrams of an example of a pair of single-tape type zippers, in both an unattached, open positon for the pair and attached in a nearly closed positon for the pair according to embodiments of the present inventions; 
         FIG. 11  illustrates in a table demonstrating the correspondence of compatible component parts making up the combinations of various embodiments; 
         FIG. 12  and  FIG. 13  illustrate respective top and bottom views of the outside surface of a semi-circled bottom piece according to embodiments of the present inventions; 
         FIG. 14  illustrates a top view of three zippers to connect two semi-circled bottom fabrics aligned to form a circled shape bottom fabric according to embodiments of the present inventions; 
         FIG. 15  illustrates a cross section diagram of examples of horizontally aligned flaps and ends at a seam interface of the two semi-circled bottom fabrics aligned together, before the zippers are closed, when the two semi-circles are put together to form a circle according to embodiments of the present inventions; 
         FIG. 16  illustrates an end view of three zippers with their sliders pulled and the zippers nearly closed when connecting the two semi-circled bottom fabrics to form a circled shape bottom piece according to embodiments of the present inventions; 
         FIG. 17  illustrates a cross section diagram of examples of both vertically and horizontally aligned flaps and ends at a seam interface of the two semi-circled bottom fabrics aligned together, when the two semi-circles are put together, to form a circle, according to embodiments of the present inventions; 
         FIG. 18  and  FIG. 19  illustrate respective top and bottom views of the outside surface of one preformed circled bottom piece according to embodiments of the present inventions; 
         FIG. 20-23  illustrates a side view of basic elements of exemplary a tent poles, assembled and disassembled, according to embodiments of the present inventions; 
         FIG. 24  illustrates a top view of the inside surface of a circled bottom piece, or two connected semi-circled bottom fabrics, lied down on the ground and folded in order to provide a triangular two person tent floor and parts of tent walls, according to embodiments of the present inventions; 
         FIG. 25  illustrates a top view of an upper fabric with a three dimensional special shape, designed to serve as a canopy and provide the two person volume over the triangular tent-floor according to embodiments of the present inventions; 
         FIG. 26  illustrates a top view of the newly formed tent—a combination of the canopy, made by the upper fabric from  FIG. 25 , situated on top of the tent floor and parts of walls, made by the bottom fabric from  FIG. 24 , according to embodiments of the present inventions; 
         FIG. 27  illustrates a view in perspective of the newly formed tent according to embodiments of the present inventions; 
         FIG. 28  illustrates a top view of the inside surface of a circled bottom fabric, or two connected semi-circled bottom fabrics, lied down on the ground and folded in order to provide a rectangular three person tent floor and parts of tent walls, according to embodiments of the present inventions; 
         FIG. 29  illustrates a top view of an upper fabric with a three dimensional special shape, designed to serve as a canopy and provide the three person volume over the rectangular tent floor according to embodiments of the present inventions; 
         FIG. 30  illustrates a top view of the newly formed tent—a combination of the canopy, made by the upper fabric from  FIG. 29 , situated on top of the tent floor and parts of walls, made by the bottom fabric from  FIG. 28 , according to embodiments of the present inventions; 
         FIG. 31  illustrates a view in perspective of the newly formed tent according to embodiments of the present inventions; 
         FIG. 32  illustrates a top view of the inside surface of a circled bottom fabric, or two connected semi-circled bottom fabrics, lied down on the ground and folded in order to provide a close to square four person tent floor and parts of tent walls, according to embodiments of the present inventions; 
         FIG. 33  illustrates a top view of an upper fabric with a three dimensional special shape, designed to serve as a canopy and provide the four person volume over the close to a square tent floor according to embodiments of the present inventions; 
         FIG. 34  illustrates a top view of the newly formed tent—a combination of the canopy, made by the upper fabric from  FIG. 33 , situated on top of the tent floor and pars of walls, made by the bottom fabric from  FIG. 32 , according to embodiments of the present inventions; 
         FIG. 35  illustrates a view in perspective of the newly formed tent according to embodiments of the present inventions; 
         FIG. 36  illustrates a top view of the inside surface of a circled bottom fabric, or two connected semi-circled bottom fabrics, lied down on the ground and folded in order to provide a hexagonal five person tent floor and parts of tent walls, according to embodiments of the present inventions; 
         FIG. 37  illustrates a top view of an upper fabric with a three dimensional special shape, designed to serve as a canopy and provide the five person volume over the hexagonal tent floor according to embodiments of the present inventions; 
         FIG. 38  illustrates a top view of the newly formed tent—a combination of the canopy, made by the upper fabric from  FIG. 37 , situated on top of the tent floor and parts of walls, made by the bottom fabric from  FIG. 36 , according to embodiments of the present inventions; 
         FIG. 39  illustrates a view in perspective of the newly formed tent according to embodiments of the present inventions; 
         FIG. 40  illustrates a top view of the inside surface of a semi-circled fabric, lied down on the ground and folded in order to provide a triangular single person tent floor and parts of tent walls, according to embodiments of the present inventions; 
         FIG. 41  illustrates a top view of an upper fabric with a three dimensional special shape, designed to serve as a canopy and provide the single person volume over the triangular tent floor according to embodiments of the present inventions; 
         FIG. 42  illustrates a top view of the newly formed tent—a combination of the canopy, made by the upper fabric from  FIG. 41 , situated on top of the tent floor and parts of walls, made by the bottom fabric from  FIG. 40 , according to embodiments of the present inventions; 
         FIG. 43  illustrates is a view in perspective of the newly formed tent according to embodiments of the present inventions; 
         FIG. 44  illustrates a front view and explains how a typical tent door is formed by zippers, and also by zippers connecting the bottom fabric with the upper fabric, according to embodiments of the present inventions; 
         FIG. 45  illustrates a perspective view of a typical tent angle as seen from outside according to embodiments of the present inventions; 
         FIG. 46  illustrates a perspective view of a pocket visible at a typical tent angle as seen from within according to embodiments of the present inventions; 
         FIG. 47  and  FIG. 48  demonstrate cross section of a typical point of the bottom and upper fabrics perimeters, before and after their connection, according to embodiments of the present inventions; 
         FIG. 49  illustrates a side view of a semi-circled bottom fabric folded in half according to embodiments of the present inventions; 
         FIG. 50  illustrates and demonstrates ways for adjusting for the size of the hood of the bottom fabric, when used as a cape according to embodiments of the present inventions; 
         FIG. 51  illustrates a side view of a cape with an adjustment for the length of the cape according to embodiments of the present inventions; 
         FIGS. 52-60  illustrate progressive steps of one way the bottom fabric could be folded and stored into its hood according to embodiments of the present inventions; 
         FIG. 61  illustrates a top view of an alternative extension embodiment for a bottom water-proof fabric according to embodiments of the present inventions; 
         FIG. 62  illustrates a view of an outside surface of the semi-circled piece of  FIG. 12  which can be used as an upper fabric in the alternative extension embodiment of the below  FIGS. 63 and 64  according to embodiments of the present inventions; 
         FIGS. 63 and 64  respectively illustrate detached and attached perspective views of the alternative extension embodiment according to embodiments of the present inventions; 
         FIG. 65  illustrates a cross-section view of a multilayer floor for a bottom water-proof fabric according to embodiments of the present inventions; 
         FIG. 66  illustrates a top view of an alternative construction for the extension embodiment of  FIG. 61  for a bottom water-proof fabric according to embodiments of the present inventions; 
         FIG. 67  illustrates a perspective view of a backpack formed by folding the bottom water-proof fabric according to embodiments of the present inventions; 
         FIG. 68  illustrates perspective top view of the inside surface with zippers according to embodiments of the present inventions; 
         FIG. 69  demonstrates a detailed view of a cross section of a typical point of the straight portion of the perimeter according to embodiments of the present inventions; 
         FIG. 70  demonstrates a detailed view of a cross section of a typical point of the semi-circular portion of the perimeter according to embodiments of the present inventions; 
         FIG. 71  illustrates a side view of a cape according to embodiments of the present inventions; 
         FIG. 72  illustrates a view in perspective of a partially closed bivy shelter suspended with a rope from a high point according to embodiments of the present inventions; 
         FIG. 73  demonstrates a slightly off top view in perspective of the next stage of the bivy shelter, but this time supported with a tent pole, according to embodiments of the present inventions; 
         FIG. 74  demonstrates a top view of the fully closed bivy shelter, according to embodiments of the present inventions; 
         FIG. 75  illustrates a top view of three zippers of two copies according to embodiments of the present inventions; 
         FIG. 76  illustrates an end view from top of the three zippers with their sliders pulled and the zippers nearly closed when connecting the two semi-circled bottom fabrics according to embodiments of the present inventions; 
         FIGS. 77-78  represent cross section diagrams of example of meeting points of the two meeting peripheries, before and after the connection is established, according to embodiments of the present inventions; 
         FIG. 79  illustrates a variation of the preferred embodiment in which the channel, which runs the entire semi-circular perimeter, is split into at least three sectors, according to embodiments of the present inventions; 
         FIG. 80  demonstrates a slightly off top view in perspective of the tent pole supported bivy shelter, which uses a sector of the channel formed at the semi-circular perimeter, according to embodiments of the present inventions; 
         FIG. 81  represents an alternative embodiment in which, instead a piece of fabric with semi-circular perimeter, an angled one is used, according to embodiments of the present inventions; 
         FIG. 82  demonstrates triangularly shaped embodiment with regular, instead of single-string, zippers according to embodiments of the present inventions; 
         FIG. 83  demonstrates a top view of alternatively folded and fully closed bivy shelter, according to embodiments of the present inventions; 
         FIG. 84  illustrates a side view of a cape according to embodiments of the present inventions; and 
         FIG. 85  illustrates in a table a summary of embodiments of the present inventions. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The embodiments of the present inventions disclosed herein relate to tents and other outdoor gear. The embodiments represent various systems with many of the same elements a typical tent could have. These elements, however, are regarded as separate items, not components of a bigger structure. What combines them is compatibility. That means that they could be used together, independently or in partial combinations for many different uses such as hammock covers, fisherman/hunter blinds, and numerous kinds of tents, bicycle/rider covers, raincoats, and cushions. 
     Typical tent components contain multiple elements such as footprint, enclosed floor-canopy compartment, fly, poles, stakes, and guy lines. Aspects of the outdoor shelter in embodiments herein is the enclosed compartment—the canopy and the tub floor—to keep occupants dry and sheltered from wind and insects and promote some privacy. 
     A bivy sack tent can be formed by wrapping a semi-circled cape, instead of a poncho, around a user&#39;s sleeping bag. This bivy sack tent is formed with the radius of the semi-circled cape from the neck to the ground. Thus a cape can be used as both a raincoat garment and also a sleeping shelter, without any increased weight by carrying multiple items. 
       FIG. 1  illustrates a perspective view and  FIG. 2  illustrates a top view of a hoop type enclosed compartment according to one embodiment of the present inventions. The lower part of the tent, made out of a bottom water-proof fabric  200  is called tent bottom and includes a floor  1 , walls  2  with doors  12  and parts of walls  3 . On top of it, made out of an upper fabric  300 , is the tent canopy  5 , which includes the tent ceiling and parts of the walls. The upper fabric could also be water-proof, when the tent is designed to be without a water-proof tent fly. The bottom water-proof fabric  200  and the upper fabric  300  are designed as separable units in order to provide the user with more functionality. For example, the bottom fabric  200  can also be used as a poncho alone, to be worn by the user, provided that it has a hood attached, while the upper fabric  300 , in combination with supporting poles  50  which run through sleeves  312 , could be used as a beach tent where no water-proof bottom is needed. 
     The sleeves  312  are an accommodation for tent support poles in this one and other embodiments. The sleeves  312  are preferably sewn into the upper fabric  300  according to this one embodiment. Alternatively the sleeves  312  can be substituted for hooks, loops or channels in other embodiments. 
     The perimeter of the bottom water-proof fabric in embodiments is any ellipse or, in some embodiments specifically, a circle. In other embodiments the perimeter of the bottom water-proof fabric in embodiments is a polygon or, in some embodiments specifically, a parallelogram or, in some further embodiments specifically, a rectangle or a square. Although the separation of the tent enclosed compartment could be done in any possible way, choosing a shape for the bottom fabric such as an oval, arch or other rounded sides shape, would provide great possibilities for variation in the floor footprint, which would help to address variety of outdoor needs. 
     Of all the rounded-side shapes, the circle has superiority, since the bottom fabric is meant to be worn as cape or poncho, and a circled shape with a radius the distance between the neck and ankles of an average height user would provide the biggest tent floor surface, without the need for size adjustment, when used as poncho. 
     Furthermore, the separation of the circled bottom fabric into two semi-circles would turn the poncho into two capes, serving two persons, which also decreases the equipment weight per person factor. The separation also adds other useful features, like tent doors  12 . 
       FIG. 3  illustrates a flat view of two semi-circled bottom fabrics  100  connecting at line  21  parts of their perimeters  110 , through zipper  130 , into a circled bottom fabric  200 , thus making up the hoop type enclosed compartment according to one embodiment of the present inventions. Next, the resulting bottom fabric  200  is folded at lines  22 ,  23 ,  24  and  25 , forming tent floor  1 , walls  2  and part of walls  3 . The bottom fabric has zipper  160 , circumscribing the curved part of its perimeter  150 . Zipper  160  mate with corresponding zipper  360 , circumscribing perimeter  350  of the upper fabric  300 , which are visible on  FIG. 4   
       FIG. 4  illustrates a flat view of the upper fabric  300  making up the hoop type enclosed compartment according to one embodiment of the present inventions. The upper fabric  300  could be made out of water-proof fabric or a bug-screen fabric or combinations with perimeter close to a rectangle, where the two small sides are lightly curved. Sleeves  312 , along the longer sides, are formed to accommodate tent poles, which will support the structure. 
     The zippers  130  which connect the two semi-circled bottom fabrics  100  into a single bottom fabric  200  must be compatible in terms of length and ability to mate. The zippers  160  and  360  which connect the bottom fabric  200  with the upper fabric  300  must be compatible in terms of length and ability to mate. They include slider with Y-shaped channel inside, which guide and connect two tapes of zipper elements. 
     The zippers in the embodiments of the present inventions are defined as having a pair of zipper tapes joined by a slider. The slider slides along the pair of zipper tapes to join the zipper tapes. Each of the pair of zipper tapes preferably has a series of zipper elements, or teeth, for joining to the other zipper tape. This joining by the zipper should be secure and holds the pressure forces of hazards such as a strong wind or an object such as a human foot kicking the lower perimeter of the outdoor structure. While each of the pair of zipper tapes preferably have a series of elements, or teeth, for joining to the other zipper tape, the zipper tapes can omit the teeth assuming a substitute for joining to mating zipper tape joins with enough ultimate tensile and shear strength to hold under such hazards. 
       FIG. 5  and  FIG. 6  illustrate diagrams of examples of an open-end type zipper, in both an open positon and a closed positon. It can have two tapes, with attached elements, separable on both ends. To close together the two tapes of the zipper, first, insert pin  123 , or simply “pin”, illustrated by a triangle symbol, is inserted into, the symbolized by a square, receptacle box  122 , or simply “box”, through the slider  121 , which is symbolized by an arrow. Last, the slider is pulled into direction of the zipper stop  124 , illustrated by a rectangle symbol. The slider has a Y-shaped channel within, which guides and connects together the zipper tapes with elements on them. 
       FIG. 7  and  FIG. 8  illustrate diagrams of an example of a closed-end type zipper, in both a semi-opened positon and a closed positon. In  FIG. 7  a pull  104  on the closed-end type zipper is partially slid between zipper stops  105 . It has two tapes with attached elements and is permanently connected on one end at one zipper stop  105 . The zipper is closed by pulling the slider to the other end, where it is stopped by the zipper stop  105  as shown in  FIG. 8 . The slider has a Y-shaped channel within, which guides and connects together the zipper tapes with elements on them. 
       FIG. 9  and  FIG. 10  illustrate diagrams of an example of a pair of single-tape type zippers, in both an unattached, open positon for the pair illustrated in  FIG. 9  and attached in a nearly closed positon for the pair illustrated in  FIG. 10 . Each single-tape type zipper has one fabric tape with attached elements, with a receptacle box  162 ,  462  on one end, an insert pin  163 ,  463  on the other end, and slider  161 ,  461  in between. What is peculiar about this zipper is that one such zipper could form connection with another identical one. Pin  163  is inserted into box  462  through slider  461 . Pin  463  is inserted into box  162  through slider  161 . Sliders  161  and  461  have Y-shaped channels within, which guide and connect together the zipper tapes with elements on them. This kind of zipper is also known as a “loop zipper”, since it is able to connect its pin  163  ( 463 ) to its own box  162  ( 462 ), through its slider  161  ( 461 ) and close itself to the middle, thus forming a loop. In the proposed invention, plastic molded zippers are a good choice for the single-tape and open-end zippers, while the closed end could be of any kind. 
     The bottom fabric, in its circled and semi-circled variation, together with tent poles, extendable with individual tent pole segments, could be combined into an outdoor system. Different form and size upper fabrics could be designed for canopies and added to that system, in order to address a number of outdoor needs, like shelter size adjustment according to the number of users, styles of camping, camping equipment weight distribution between the users. One such system would allow the user to upgrade to tents with bigger dimensions reusing most of the previous configuration components, or replace damaged modules, easily and at low cost since not the whole enclosed compartment needs to be replaced. This would save money for the end user in the long run, while simultaneously providing increased functionality. 
       FIG. 11  illustrates in a table demonstrating the correspondence of compatible component parts making up the combinations of various embodiments. Additional to the component parts shown in the table of  FIG. 11  are ancillary components such as guy lines, stakes, floor footprints, and flies. These components are omitted from the table of  FIG. 11  for simplicity. 
     Each row in the table of  FIG. 11  corresponds to the combinations of various embodiments. 
     The first column in the table of  FIG. 11  illustrates a description, exemplary figure number and icon for each of these various embodiments. 
     The first row in the table of  FIG. 11  illustrates a description, exemplary figure number and icon for each of the various main system components. 
     The second column in the table of  FIG. 11  illustrates the semi-circled and circled bottom fabrics used to form bottom part of the tent. They use single-tape zippers to interconnect with the upper fabrics. 
     The third column in the table of  FIG. 11  illustrates prefabricated poles, constructed from standard size pole segments connected with a bungee. Further, for construction of bigger tents, the length of these poles could be extended by attaching additional pole segments. 
     The fourth through the ninth columns in the table of  FIG. 11  illustrate different upper fabrics which serve as canopies computable with certain the floors. Although their size and construction vary, they always have perimeter and single tape zippers on it which mate with the ones on the bottom fabrics. 
     The center of the table of  FIG. 11  specifies a needed number of each of the main system components in the first row to assemble each of the various embodiments in the first column. 
     As it is seen from the table of  FIG. 11 , the embodiments illustrated therein require either a single circled or two connected semi-circled bottom fabrics at the tent bottom. 
       FIGS. 12 and 13  illustrate respective top and bottom views of the surface of the semi-circled bottom fabric  100  according to embodiments of the present inventions. The bottom fabric  100  is a quite versatile component. Curved line  150  and straight line  110  form part of the perimeter of the bottom fabric  100 . The hood  101  is turned inside out on  FIG. 12 , so that zipper  103 , symbolized by two bold lines, at hood&#39;s front perimeter  102 , could be seen. It is closed-end type zipper and has only one slider  104 , which closes the two tapes of zipper  103  into the direction of perimeter  110 , where the zipper stops are situated. This zipper is used in order to adjust for the face of the user when bottom fabric  100  is used as a cape. Alternatively, strings  106 , situated in a sleeve at the perimeter  102 , could be used to adjust for the user&#39;s face Zipper  103  is also used as one of the doors of a pouch, formed when storing the cape into its hood  101 , which is explained later. 
     Other elements are grommets  111  and rings,  112  situated close to perimeters  150  and  110 . Grommets  111 , which could alternately be rings or loops, are situated in the vicinity of the increments of 10° at perimeter  150  and their corresponding trajectories at perimeter  110 . They are used for adjustment of the size of the cape, for connecting guy lines and ropes which run through these grommets so that two capes could be connected together to form a hammock. Rings  112 , which could alternately be grommets, short ropes or loops, are situated in the vicinity of the increments of 30° and 45° at perimeter  150 , in the vicinity of ¼ and ¾ of and the middle of perimeter  110 , as well as the back angle of the hood  101  ( FIG. 49 ). They are used to stretch the fabric when tub is formed when bottom fabric  100  is used as a tent bottom ( FIG. 45 ), as well as when forming single person cape tent ( FIG. 49 ) Sleeves  113  with strings  114  inside them, with adjustable length, by the mechanisms  115 , could be optionally installed. These radially extending sleeves  113 , strings  114 , and mechanisms  115  serve as tensioners used for length adjustment when the bottom fabric  100  is used as a cape by less tall users. 
     Two single-tape zippers,  160  and  170 , circumscribe perimeter  150 . Zipper  160  starts with box  162 , symbolized with a square, ends with pin  163 , symbolized with a triangle, and has slider  161 , symbolized with an arrow. Zipper  170  starts with box  172 , ends with pin  173 , and has slider  171 . 
     In another preferred embodiment, the single string zippers  160  and  170  could be the two halves of a single, open-end type zipper, with a slider  171 , box  172 , pin  163 , and zipper stops  173 , and  162 , while slider  161  would not exist. 
     On the other side of the bottom fabric  100 ′,  FIG. 13 , two single-tape zippers,  130  and  140 , are visible at the perimeter  110 . Zipper  130  starts with box  132 , ends with pin  133 , and has slider  131 . Zipper  140  starts with box  142 , ends with pin  143 , and has slider  141 . Zippers  130  and  140  could be connected together to form tent door, or part of it, in the different tent embodiments, or front opening when the bottom fabric  100  is used as a cape. The hood is in correct position now—inside in—so the zipper  103  at the hood is no longer visible. 
     Zipper  120  is an open-end type zipper with two tapes situated symmetrically in relevance to the middle of perimeter  110 . Its elements are box  122 , pin  123 , slider  121 , and two zipper stops  124 . It closes starting from the middle of perimeter  110  by inserting the pin  123  into the receptacle box  122  through the slider  121 . Zipper  120  is used for adjustments for the neck of the user, when used as a cape. It is also used as one of the doors of a pouch, formed when storing the cape into its hood. Furthermore, it could be used as a place where a bug net could be attached. Alternatively, snaps or buttons can be used in place of the two opposing tapes of zipper  120  with pin  123 , box  122  and slider  121 . When using snaps, male snaps would go on one half and female snaps on the other half. When using buttons, button holes would go on one half and buttons on the other half. 
     In the preferred embodiment the approximate radius of the semi-circled bottom fabric  100  is 59 inches, the approximate length of zippers  160  and  170  is 91 inches, the approximate length of zippers  130  and  140  is 51 inches, while the length of zippers  120  and  103  is 14 inches. The hood is made out of two, square shaped fabrics of fabric, sewn at two sides, with dimension  14  by 14 inches approximately. 
     In another preferred embodiment, the zippers  120 ,  130  and  140 , could be substituted with only one single string zipper  130 , running from end to end the perimeter  110 . 
     In another preferred embodiment, the single string zippers  130  and  140  could be the two halves of a single, open-end type zipper with a slider  131 , box  132 , pin  143 , and zipper stops  133 , and  142 , while slider  141  would not exist. 
     The bottom water-proof fabric has a hood and is convertible into a cloak. A perimeter of the bottom water-proof fabric is substantially a circle and the hood is located near the center of the circle to be convertible into a poncho. Alternatively, the perimeter of the bottom water-proof fabric is a semi-circle of a substantially curved edge and a substantially straight edge and the hood is located near the center of the substantially straight edge to be convertible into a cape. 
       FIG. 14  illustrates a top view of three zippers  120 ,  130  and  140  used to connect two bottom fabrics  100 ′ to form a circled shape bottom fabric according to embodiments of the present inventions. Namely, pins  133  of each of the bottom fabrics are inserted into boxes  142  of the other bottom fabric through sliders  141 . Pins  143  of each of the bottom fabrics are inserted into boxes  132  of the other bottom fabric through sliders  131 . Then, pins  123  of each of the bottom fabric are inserted into boxes  122  of the other bottom fabric through sliders  121 . Finally, the illustrated sliders are pulled and the zippers are closed— FIG. 16 . When such circled floor is made, the position of sliders  131  and  141  can vary, or not all connections would be compete at the  110 - 150  crossing, so that zippers  140  and  130  could be used as tent doors. 
       FIG. 15  illustrates a cross section diagram of examples of horizontally aligned flaps and ends at a seam interface of the two semi-circles aligned together, before the zippers are closed the moment when the two semi-circled bottom fabric  100  are put together. For exemplary purposes, two typical zipper elements  125  and part of the zipper  120  are available to establish the connection. Below this connection the perimeters  110  and hoods  101  of both semi-circled bottom fabric  100  are available to overlap. A ziplock-style strip  116  has female  117  and male  118  parts at its edge available to overlap and connect with a water-proof seal. This ziplock-style strip  116  is sometimes commonly referred to using the trademark “ZIPLOC”. Grommets  111  are illustrated through the perimeters  110  of the semi-circles  100  in the cross-section of  FIG. 15 . All elements are attached together by waterproofed seams  152  and  153 . Alternatively, ultrasonic welding could be used. 
     Alternatively, instead of ziplock-style strip, a strip with snaps could be used instead. 
       FIG. 16  illustrates an end view of three zippers  120 ,  130  and  140  with their sliders pulled and the zippers nearly closed when connecting the two semi-circled bottom fabric  100 ′ to form a circled shape bottom fabric according to embodiments of the present inventions. 
     In the preferred embodiment in which there is only one single string zipper  130 , running the perimeter  110  from end to end and connecting the two semi-circles, the pin  133  of each is inserted into the box  132  through the slider  131 , of the other. 
     In the preferred embodiment in which zippers  130  and  140  are two halves of a single, open-end type zipper,  133  and  142  would be zipper stops and sliders  141  would not exist. 
       FIG. 17  illustrates a cross section diagram of examples of both vertically and horizontally aligned flaps and ends at a seam interface of the two semi-circled bottom fabric aligned and zipped together 
       FIG. 18  and  FIG. 19  illustrate respective top and bottom views of the surface of one preformed circled bottom fabric  200  according to embodiments of the present inventions. 
       FIG. 18  illustrates a top view of the outside surface of the bottom fabric  200 . It has perimeter  250 , circumscribed by four single-tape zippers— 260 ,  270 ,  280  and  290 . Zipper  260  has slider  261 , box  262  and pin  263 . Zipper  270  has slider  271 , box  272  and pin  273 . Zipper  280  has slider  281 , box  282  and pin  283 . Zipper  290  has slider  291 , box  292  and pin  293 . Throughout the perimeter, in the vicinity of the increments of 10°, are situated grommets  211 . There are also rings, or loops,  212 , attached to the fabric close to the perimeter, in the vicinity of the increments of 30° and 45°, as well as close to the back corners of the hood  201 . The hood  201  is turned inside out in order to make visible a close-end type zipper  203  with slider  204  at the inside of the face perimeter  202 . It is used for storing the bottom fabric  200  into its hood by forming a pouch. The close-end type zipper  203  is also used for face opening adjustment. Alternatively, strings  206 , situated into preformed sleeves, which circumscribe the hood perimeter  202 , could be used too. Other elements are the closed-end zippers  240  with sliders  241 , which partly separates the fabric close to the perimeter  250 , front and back of the hood  201 . These are a useful feature when forming tent door of the shelter constructions embodiments, which are described later. 
     In another preferred embodiment, the single string zippers  260  and  270  could be the two halves of a single, open-end type zipper with a slider  271 , box  272 , pin  263 , and zipper stops  273 , and  262 , while slider  261  would not exist. And also, the single string zippers  280  and  290  could be the two halves of a single, open end type zipper with a slider  291 , box  292 , pin  283 , and zipper stops  293 , and  282 , while slider  281  would not exist. 
       FIG. 19  illustrates a top view of the inside surface of the circled bottom fabric  200 ′. An opening  210  is left into the fabric. It is closed by a close-end type zipper  220 , which has slider  221 . This zipper could be waterproof. This opening allows the use of the bottom fabric  200  as a poncho. For adjusting the size, optional sleeves  213  with strings inside them  214 , length adjustable with mechanisms  215  could be preinstalled. Sleeves  213  with strings  214  inside them, with adjustable length, by the mechanisms  215 , could be optionally installed. These radially extending sleeves  213 , strings  214 , and mechanisms  215  serve as tensioners used for length adjustment when the bottom fabric  200  is used as a poncho by short users. 
       FIG. 20-23  illustrates a side view of basic elements of exemplary a tent poles  50 , assembled and disassembled, according to embodiments of the present inventions. As seen on  FIG. 20 , the basic element of a tent pole  50  is the pole segment  51 . A segment usually is a hollow cylindrical body, with a female end  52 . A tent pole usually is a combination of such segments, each inserted into the next, kept for convenience together with a bungee  53  running through them, as seen on  FIG. 21  In set position, the segments&#39; male ends are inserted into the female ends— FIG. 22 . The length of one such pole could be extended by inserting additional, non-bungee connected, segments. Alternatively, one of the tent pole segments could have female ends  52  on both sides, thus making the whole pole female on both sides. This is useful when special tent stacks are used, designed to be inserted in tent pole female ends. In retracted position the poles&#39; segments are stored in parallel to each other— FIG. 23   
     With the help of tent poles  50 , extendable when needed by segments  51 , a series of different size tents could be constructed using at the bottom a full circled bottom fabric  200  or one or two semi-circled bottom fabric  100 . This is done by the use of series of upper fabrics specially designed to serve as tent canopies for a particular use and each time the tent footprint of these bottom fabrics is arranged in a different manner. 
     A tent, designed to provide volume enough for two average size persons, as well as its basic elements, is illustrated in  FIGS. 24-27  for the alternative embodiments described herein. 
       FIG. 24  illustrates a top view of the inside surface of a circled bottom fabric  200 , lied down on the ground. Alternatively, two semi-circled bottom fabrics  100 , connected together as described on  FIG. 14-17 , could be used as well. Parts of their perimeter  150  is being lifted up and pivoted at lines  26 ,  27 , and  28 , away from the starting position  151 , effectively forming an equilateral, triangular-shaped, tent footprint and part of the tent walls. Four single tape zippers circumscribe the perimeter  150 - 160 ,  170 ,  180 , and  190 . Zipper  160  has slider  161 , box  162 , and pin  163 . Zipper  170  has slider  171 , box  172 , and pin  173 . Zipper  180  has slider  181 , box  182 , and pin  183 . Zipper  190  has slider  191 , box  192  and pin  193 . 
       FIG. 25  illustrates a top view of an upper fabric with a three dimensional special shape, designed to serve as a tent canopy and provide the two person volume over the triangular foot print tent bottom. Three sleeves  412 , or multiple of loops, situated at its surface would provide accommodation for the tent poles, which would support the construction. In embodiments such as the tent canopy of  FIG. 25 , the upper fabric is supported by one or more support poles, each support pole crossing at a different portion of a surface of the upper fabric. In other embodiments for tent canopies, pole-less variants of the embodiments can be achieved by a support at a central portion of a surface of the upper fabric. Examples will be described with reference to  FIG. 49  where a short rope holds up the tent upper fabric. One end of the rope connects to the tent upper fabric via grommets or loops at a central portion. Another end of the short rope is secured to a high point, such as a branch of a tree. 
     Four single tape zippers circumscribe the upper fabric perimeter  450 - 460 ,  470 ,  480 , and  490 . Zipper  460  has slider  461 , box  462 , and pin  463 . Zipper  470  has slider  471 , box  472 , and pin  473 . Zipper  480  has slider  481 , box  482  and pin  483 . Zipper  490  has slider  491 , box  492 , and pin  493 . 
     In another preferred embodiment, the single string zippers  460  and  470  could be the two halves of a single, open-end type zipper with a slider  461 , box  462 , pin  473 , and zipper stops  463 , and  472 , while slider  471  would not exist. And also, the single string zippers  480  and  490  could be the two halves of a single, open end type zipper with a slider  481 , box  482 , pin  493 , and zipper stops  483 , and  492 , while slider  491  would not exist. 
       FIG. 26  illustrates a top view of the newly formed tent—a combination of the upper fabric from  FIG. 25  situated on top of the bottom fabric from  FIG. 24 . This is done by inserting poles  50  into the sleeves  412  and connecting the zippers at the perimeters of the bottom and upper fabrics. In order for the zippers to mate, they must be identical, but run in opposite directions. To form connection between zippers  160  and  460 , pin  163  is inserted through slider  461  into box  462  and pin  463  is inserted through slider  161  into box  162 . Then the two sliders  161  and  461  are slid towards each other effectively closing the zippers  160  and  460  together. To form connection between zippers  170  and  470 , pin  173  is inserted through slider  471  into box  472  and pin  473  is inserted through slider  171  into box  172 . Then the two sliders  171  and  471  are slid towards each other effectively closing the zippers  170  and  470  together. To form connection between zippers  180  and  480 , pin  183  is inserted through slider  481  into box  482  and pin  483  is inserted through slider  181  into box  182 . Then the two sliders  181  and  481  are slid towards each other effectively closing the zippers  180  and  480  together. To form connection between zippers  190  and  490 , pin  193  is inserted through slider  491  into box  492  and pin  493  is inserted through slider  191  into box  192 . Then the two sliders  191  and  491  are slid towards each other effectively closing the zippers  190  and  490  together. 
       FIG. 27  illustrates a view in perspective of the newly formed tent. Visible are the elements which form the enclosed compartment—the upper fabric  400  on top of the two bottom fabrics  100 , the zipper connections between them, and the poles  50  which run through sleeves  412 . The zippers connection  130 , 140  could be used as a door or be part of a door. 
     A tent, designed to provide volume enough for three average size persons, or two above average, as well as its basic elements, is illustrated in  FIGS. 28-31  for the alternative embodiments described herein. 
       FIG. 28  illustrates a top view of the inside surface of a bottom fabric  200 , lied down on the ground. Alternatively, two semi-circled bottom fabrics  100 , connected together as described on  FIGS. 14-17 , could be used as well. Parts of their perimeter  150  is being lifted up and pivoted at lines  22 ,  23 ,  24  and  25 , away from the starting position  151 , effectively forming a rectangular shaped tent footprint and part of the tent walls. Four single tape zippers circumscribe the perimeter  150 - 160 ,  170 ,  180 , and  190 . Zipper  160  has slider  161 , box  162 , and pin  163 . Zipper  170  has slider  171 , box  172 , and pin  173 . Zipper  180  has slider  181 , box  182 , and pin  183 . Zipper  190  has slider  191 , box  192 , and pin  193 . 
       FIG. 29  illustrates a top view of a three dimensional upper fabric with a special shape, designed to serve as a tent canopy and provide the three person volume over the rectangular foot print tent bottom. Two sleeves  512 , or multiple loops, situated at its surface would provide accommodation for the tent poles, which would support the construction. Four single tape zippers circumscribe the upper fabric perimeter  550 - 560 ,  570 ,  580  and  590 . Zipper  560  has slider  561 , box  562 , and pin  563 . Zipper  570  has slider  571 , box  572  and pin  573 . Zipper  580  has slider  581 , box  582  and pin  583 . Zipper  590  has slider  591 , box  592 , and pin  593 . 
     In another preferred embodiment, the single string zippers  560  and  570  could be the two halves of a single, open-end type zipper with a slider  561 , box  562 , pin  573 , and zipper stops  563 , and  572 , while slider  571  would not exist. And also, the single string zippers  580  and  590  could be the two halves of a single, open end type zipper with a slider  581 , box  582 , pin  593 , and zipper stops  583 , and  592 , while slider  591  would not exist. 
       FIG. 30  illustrates a top view of the newly formed tent—a combination of the upper fabric from  FIG. 29  situated on top of the bottom from  FIG. 28 . This is done by inserting poles  50 , each extended if needed with one or more additional segments  51 , into the sleeves  512  and connecting the zippers at the perimeters of the bottom and upper fabrics. In order for the zippers to mate, they must be identical but run in opposite directions. To form connection between zippers 160  and  560 , pin  163  is inserted through slider  561  into box  562  and pin  563  is inserted through slider  161  into box  162 . Then the two sliders  161  and  561  are slid towards each other effectively closing the zippers  160  and  560  together. To form connection between zippers  170  and  570 , pin  173  is inserted through slider  571  into box  572  and pin  573  is inserted through slider  171  into box  172 . Then the two sliders  171  and  571  are slid towards each other effectively closing the zippers  170  and  570  together. To form connection between zippers  180  and  580 , pin  183  is inserted through slider  581  into box  582  and pin  583  is inserted through slider  181  into box  182 . Then the two sliders  181  and  581  are slid towards each other effectively closing the zippers  180  and  580  together. To form connection between zippers  190  and  590 , pin  193  is inserted through slider  591  into box  592  and pin  593  is inserted through slider  191  into box  192 . Then the two sliders  191  and  591  are slid towards each other effectively closing the zippers  190  and  590  together. 
       FIG. 31  illustrates a view in perspective of the newly formed tent. Visible are the elements which form the enclosed compartment—the upper fabric  500  on top of the two bottom fabrics  100 , the zipper connections between them, and the poles  50  which run through sleeves  512 . The zippers connection  130 , 140  could be used as a tent door. 
     A tent, designed to provide volume enough for four average size persons as well as its basic elements, is illustrated in  FIGS. 32-35  for the alternative embodiments described herein. 
       FIG. 32  illustrates a top view of the inside surface of a circled bottom fabric  200 , lied down on the ground. Alternatively, two semi-circled bottom fabrics  100 , connected together as described on  FIGS. 14-17 , could be used as well. Parts of their perimeter  150  is being lifted up and pivoted at lines  29 ,  30 ,  31  and  32 , away from the starting position  151 , effectively forming an almost square shaped tent footprint and part of the tent walls. Four single tape zippers circumscribe the perimeter  150 - 160 ,  170 ,  180  and  190 . Zipper  160  has slider  161 , box  162  and pin  163 . Zipper  170  has slider  171 , box  172  and pin  173 . Zipper  180  has slider  181 , box  182  and pin  183 . Zipper  190  has slider  191 , box  192  and pin  193 . 
       FIG. 33  illustrates a top view of an upper fabric with a three dimensional special shape, designed to serve as a tent canopy and provide the four person volume over the almost square footprint tent bottom. Two sleeves  612  situated at its surface would provide accommodation for the tent poles, which would support the construction. Four single tape zippers circumscribe the upper fabric perimeter  650 - 660 ,  670 ,  680  and  690 . Zipper  660  has slider  661 , box  662 , and pin  663 . Zipper  670  has slider  671 , box  672 , and pin  673 . Zipper  680  has slider  681 , box  682 , and pin  683 . Zipper  690  has slider  691 , box  692 , and pin  693 . 
     In another preferred embodiment, the single string zippers  660  and  670  could be the two halves of a single, open-end type zipper with a slider  661 , box  662 , pin  673 , and zipper stops  663 , and  672 , while slider  671  would not exist. And also, the single string zippers  680  and  690  could be the two halves of a single, open end type zipper with a slider  681 , box  682 , pin  693 , and zipper stops  683 , and  692 , while slider  691  would not exist. 
       FIG. 34  illustrates a top view of the newly formed tent—a combination of the upper fabric from  FIG. 33  situated on top of the bottom fabric from  FIG. 32 . This is done by inserting poles  50 , each extended if needed with one or more additional segments, into the sleeves  612  and connecting the zippers at the perimeters of the bottom and upper fabrics. In order for the zippers to mate they must be identical but run in opposite directions. To form connection between zippers  160  and  660 , pin  163  is inserted through slider  661  into box  662  and pin  663  is inserted through slider  161  into box  162 . Then the two sliders  161  and  661  are slid towards each other effectively closing the zippers  160  and  660  together. To form connection between zippers  170  and  670 , pin  173  is inserted through slider  671  into box  672  and pin  673  is inserted through slider  171  into box  172 . Then the two sliders  171  and  671  are slid towards each other effectively closing the zippers  170  and  670  together. To form connection between zippers  180  and  680 , pin  183  is inserted through slider  681  into box  682  and pin  683  is inserted through slider  181  into box  182 . Then the two sliders  181  and  681  are slid towards each other effectively closing the zippers  180  and  680  together. To form connection between zippers  190  and  690 , pin  193  is inserted through slider  691  into box  692  and pin  693  is inserted through slider  191  into box  192 . Then the two sliders  191  and  691  are slid towards each other effectively closing the zippers  190  and  690  together. 
       FIG. 35  illustrates a view in perspective of the newly formed tent. Visible are the elements which form the enclosed compartment—the upper fabric  600  on top of the two bottom fabrics  100 , the zipper connections between them, and the poles  50  which run through sleeves  612 . The zippers connection  130 , 140  could be used as part of a tent door. 
     A tent, designed to provide volume enough for five average size persons as well as its basic elements, is illustrated in  FIGS. 36-39  for the alternative embodiments described herein. 
       FIG. 36  illustrates a top view of the inside surface of a bottom fabric  200 , lied down on the ground. Alternatively, two semi-circled bottom fabrics  100 , connected together as described on  FIGS. 14-17 , could be used as well. Parts of their perimeter  150  is being lifted up and pivoted at lines  33 ,  34 ,  35 ,  36 ,  37  and  38 , away from the starting position  151 , effectively forming a hexagonal shaped tent footprint and part of the tent walls. Four single tape zippers circumscribe the perimeter  150 - 160 ,  170 ,  180  and  190 . Zipper  160  has slider  161 , box  162 , and pin  163 . Zipper  170  has slider  171 , box  172 , and pin  173 . Zipper  180  has slider  181 , box  182 , and pin  183 . Zipper  190  has slider  191 , box  192  and pin  193 . 
       FIG. 37  illustrates a top view of an upper fabric with a special shape, designed to serve as a tent canopy and provide the five person volume over the hexagonal foot print tent bottom. Three sleeves  712  situated at its surface would provide accommodation for the tent poles, which would support the construction. Four single tape zippers circumscribe the upper fabric perimeter  750 - 760 ,  770 ,  780  and  790 . Zipper  760  has slider  761 , box  762 , and pin  763 . Zipper  770  has slider  771 , box  772 , and pin  773 . Zipper  780  has slider  781 , box  782  and pin  783 . Zipper  790  has slider  791 , box  792  and pin  793 . 
     In another preferred embodiment, the single string zippers  760  and  770  could be the two halves of a single, open-end type zipper with a slider  761 , box  762 , pin  773 , and zipper stops  763 , and  772 , while slider  771  would not exist. And also, the single string zippers  780  and  790  could be the two halves of a single, open end type zipper with a slider  781 , box  782 , pin  793 , and zipper stops  783 , and  792 , while slider  791  would not exist. 
       FIG. 38  illustrates a top view of the newly formed tent—a combination of the upper fabric from  FIG. 37  situated on top of the bottom fabric from  FIG. 36 . This is done by inserting poles  50 , each extended if needed with one or more additional segments, into the sleeves  712  and connecting the zippers at the perimeters of the bottom and upper fabrics. In order for the zippers to mate, they must be identical, but run in opposite directions. To form connection between  160  and  760 , pin  163  is inserted through slider  761  into box  762  and pin  763  is inserted through slider  161  into box  162 . Then the two sliders  161  and  761  are slid towards each other effectively closing the zippers  160  and  760  together. To form connection between  170  and  770 , pin  173  is inserted through slider  771  into box  772  and pin  773  is inserted through slider  171  into box  172 . Then the two sliders  171  and  771  are slid towards each other effectively closing the zippers  170  and  770  together. To form connection between  180  and  780 , pin  183  is inserted through slider  781  into box  782  and pin  783  is inserted through slider  181  into box  182 . Then the two sliders  181  and  781  are slid towards each other effectively closing the zippers  180  and  780  together. To form connection between  190  and  790 , pin  193  is inserted through slider  791  into box  792  and pin  793  is inserted through slider  191  into box  192 . Then the two sliders  191  and  791  are slid towards each other effectively closing the zippers  190  and  790  together. 
       FIG. 39  illustrates a view in perspective of the newly formed tent. Visible are the elements which form the enclosed compartment—the upper fabric  700  on top of the two bottom fabrics 100 , the zipper connections between them, and the poles  50  which run through sleeves  712 . The zippers connection  130 , 140  could be used as part of a tent door. 
     The same principle could be employed to construct a tent, designed to provide volume enough for one person only. This is illustrated in  FIGS. 40-43  for the alternative embodiments described herein. 
       FIG. 40  illustrates a top view of the inside surface of a semi-circled bottom fabric  100 , lied down on the ground. Parts of its perimeter  150  are being lifted up and pivoted at lines  39  and  40 , away from the starting position  151 , effectively forming a triangle shaped tent foot print and part of the tent walls. Two single tape zippers circumscribe the perimeter  150 - 160  and  170 . Two single tape and one open end zipper circumscribe the perimeter  110 - 130 , 140  and  120 , respectively. Zipper  160  has slider  161 , box  162 , and pin  163 . Zipper  170  has slider  171 , box  172 , and pin  173 . Zipper  130  has slider  131 , box  132 , and pin  133 . Zipper  140  has slider  141 , box  142 , and pin  143 . Zipper  120 , an open-end type zipper, is two parts, situated symmetrically around the middle of perimeter  110 . Its elements are slider  121 , box  122 , and pin  123 . At  120 &#39;s both ends there are also zipper stops  124 . 
       FIG. 41  illustrates a top view of an upper fabric with a three dimensional special shape, designed to serve as a tent canopy and provide the single person volume over the triangular foot print tent bottom. Two sleeves  812  situated at its surface would provide accommodation for the tent poles, which would support the construction. Five zippers circumscribe the upper fabric perimeters  850  and  810 - 860 ,  870 ,  830 ,  840  and  820 . These zippers are exactly the same zippers as the zippers on  FIG. 40 , but run in opposite direction. Zipper  860  has slider  861 , box  862  and pin  863 . Zipper  870  has slider  871 , box  872  and pin  873 . Zipper  830  has slider  831 , box  832 , and pin  833 . Zipper  840  has slider  841 , box  842 , and pin  843 . Zipper  820  is two parts, situated symmetrically around the middle of perimeter  810 . Its elements are slider  821 , box  822 , and pin  823 . At  820 &#39;s both ends there are also zipper stops  824 . 
     In another preferred embodiment, the single string zippers  860  and  870  could be the two halves of a single, open-end type zipper with a slider  861 , box  862 , pin  873 , and zipper stops  863 , and  872 , while slider  871  would not exist. 
     In another preferred embodiment, the zippers  820 ,  830  and  840 , could be substituted with only one single string zipper  830 , running from end to end the perimeter  810 . 
     In another preferred embodiment, the single string zippers  830  and  840  could be the two halves of a single, open-end type zipper with a slider  841 , box  842 , pin  833 , and zipper stops  843  and  832 , while slider  831  would not exist. 
       FIG. 42  illustrates a top view of the newly formed tent—a combination of the upper fabric from  FIG. 41  situated on top of the bottom fabric from  FIG. 40 . This is done by inserting poles  50  into the sleeves  812  and connecting the zippers at the perimeters of the bottom and upper fabrics. In order for the zippers to mate, they must be identical, but run in opposite directions. To form connection between  160  and  860  pin  163  is inserted through slider  861  into box  862  and pin  863  is inserted through slider  161  into box  162 . Then the two sliders  161  and  861  are slid towards each other effectively closing the zippers  160  and  860  together. To form connection between  170  and  870  pin  173  is inserted through slider  871  into box  872  and in  873  is inserted through slider  171  into box  172 . Then the two sliders  171  and  871  are slid towards each other effectively closing the zippers  170  and  870  together. To form connection between  130  and  830 , pin  133  is inserted through slider  831  into box  832  and pin  833  is inserted through slider  131  into box  132 . Then the two sliders  131  and  831  are slid towards each other effectively closing the zippers  130  and  830  together. To form connection between  140  and  840  pin  143  is inserted through slider  841  into box  842  and pin  843  is inserted through slider  141  into box  142 . Then the two sliders  141  and  841  are slid towards each other effectively closing the zippers  140  and  840  together. To form connection between  120  and  820  pin  123  is inserted through slider  821  into box  822  and pin  823  is inserted through slider  121  into box  122 . Then the two sliders  121  and  821  are slid away from each other, into direction of the two zipper stops  124  and the two zipper stops  184 , thus effectively closing the zippers  120  and  820  together. 
       FIG. 43  illustrates is a view in perspective of the newly formed tent. Visible are the elements which form the enclosed compartment—the upper fabric  800  on top of the bottom fabric  100 , the zipper connections between them, and the poles  50  which run through sleeves  812 . 
       FIG. 44  illustrates a front view and explains how a typical tent door is formed by the zippers  130  and  140 , and also by the zippers connecting the bottom fabric with the upper fabric. The configuration would vary from embodiment to embodiment. Sometimes, as on  FIG. 31 , when two bottom fabric are used, zipper connection  130 , 140  would provide door alone. In other cases, additional close-end zipper,  440  with slider  441 , needs to be prefabricated in the upper fabric. The door is made by simply not connecting together all neighboring zippers around the points, where bottom fabric perimeters  110  and  150  meet. Pin  133  and box  142 , pin  463  and box  162 , and also pin  193  and box  492  are intentionally left unconnected—a door is formed. Sliders  461 ,  191 ,  131  as well as  441 , if present, could close this opening, thus effectively closing the tent door. Alternatively, when a circular bottom fabric is used, zippers  240  ( FIG. 18 ) take the place of zippers  130 , 140 . 
       FIG. 45  illustrates a perspective view of a typical tent angle as seen from outside.  FIG. 45  also demonstrates how the tub floor is formed. First, the bottom fabric  100  is placed on the ground. The upper fabric in use, for example  400 , with poles  50  preinstalled, into the sleeves  412 , is attached on top of the bottom fabric  100  as explained before. To stretch the bottom fabric, poles  50  are inserted into rings  112  and tent footprint&#39;s grommets, if additional tent footprint is used. Alternatively, as shown on  FIG. 45 , stacks  70  are inserted through rings  112  into the soil. Optionally, the other end of the stacks  70  is inserted into the pole&#39;s female ends  52 . The perimeter of the upper fabric does not reach the ground, so when zippers  160  and  170  are connected to zippers  460  and  470 , the tents angles go up a few inches, effectively forming the tub. Two distant points at the perimeter  150  of the bottom fabric get close together and get connected with little string, rings or hooks  71 , thus forming a little pocket inside. The perimeter  450  of the upper fabric has the form of a placket which covers completely the zipper connection  460 , 160 . Grommets  411  at the perimeter  410  are used to secure additionally the tent to the ground through guy lines. The outdoor shelter system rests with the bottom water-proof fabric  100  on the ground surface. Perimeter locations where the zippers mesh  450  are biased upward away from the ground surface by at least the support pole  50 . 
       FIG. 46  illustrates a perspective view of the little pocket as visible from within. This pocket is formed, behind the tent poles at the angles where the tub is formed. Above the connection line  460 , 160  is the upper fabric  400 , while bellow is bottom fabric  100 . The pocket is in the middle, right above the tub angle. Such pocket—a good place for ventilation opening—could be embedded in the upper fabric construction, when designed. Alternatively, it could be formed on spot by connecting two of the grommets  411 , closest to the pole  50  with a little rope  71 , rings or hooks as seen on  FIG. 45 . 
       FIG. 47  and  FIG. 48  demonstrate cross section of a typical point of connection of the bottom and upper fabric perimeters,  150  and  450  respectively. Practically, these perimeters are identical, except that their corresponding zippers run in opposite direction. Zipper elements,  165 , part of zipper  160 , face away from the perimeter  150  and zipper elements  465 , part of zipper  460 , face away from the perimeters  450 . The perimeter  450  of the upper fabric has the form of a placket which covers completely the zipper connection  460 ,  160 . The falling water would typically reach the surface  100  through seam  60  or grommet  411  first, but these points are below the zipper elements connection  465 , 165 , which with the help of gravity, would prevent the water from entering the tent through the zipper connection  460 , 160 . 
       FIG. 49  illustrates a side view of a semi-circled bottom fabric folded in half. Another useful feature of the semi-circled bottom fabric is its ability to be used as a cape. This is done by connecting zippers  130  and  140  of the perimeter  110  of the single semi-circle—see also  FIG. 13 . First, pin  143  is inserted through slider  131  into box  132 . Then slider  131  is pulled to close the connection as needed. Zippers  103  and  120  could be closed partially to adjust for the user&#39;s face and neck respectively. 
     This is also a way to form a simple shelter. In addition to the above, zippers  160  and  170  at perimeter  150  are closed by inserting pin  163  through slider  171  into box  172 , and also pin  173  is inserted through slider  161  into box  162 . Then the two sliders  161  and  171 , or just one of them, are pulled into direction of each other to form a fully enclosed compartment. Zippers  130  and  140  serve as a door of this newly formed simple shelter. This enclosed compartment could be attached at three points—one high  91 , and two on the ground,  92  and  93 . A grommets, or little loops  112 , situated at the rear corners of hood  101 , are used to connect, by a little rope  71 , the bottom fabric  100  to a high point,  901 , while grommets  111  at the middle and ends of perimeter  150  are used to connect the bottom fabric  100  to the ground with stacks. 
     Alternatively, for larger size users, the volume of the enclosed compartment of  FIG. 49  could be further expanded by additional fabric, which has zippers at its perimeter, which mate and connect to the bottom fabric  100  perimeter zippers. 
       FIG. 50  illustrates and demonstrates ways for adjusting for the size of the hood of the bottom fabric  100 , when used as a cape. First, it is turned inside out. The size of the hood  101  could be adjusted with a little rubber ring  72 , while the openings for the neck and the face of the user could be adjusted by partly closing zippers  120  and  103  respectively. Alternatively, the face opening could be adjusted by ropes  106 , which runs through preformed sleeve which circumnavigate the hood face perimeter  102 . 
       FIG. 51  illustrates an inside view of a cape with an adjustment for the length of the cape. The adjustment would depend on the weather conditions. 
     During a rainy and windy day, when the moisture released from the user&#39;s body is not an issue, usually what is important is to prevent the cape from flapping around. First, zippers  160 ,  170 ,  130 , and  140  are closed tightly around the user and his backpack, as described on  FIG. 49 . Opening is left only for the user&#39;s limbs around where perimeters  110  and  150  meet. The extra cape material is kept inside together by a robber ring, similar to  72  but bigger, in a manner as described for the hood adjustment above. Alternatively, the zippers  160  and  170  are rolled up with the extra material and fixed with clamps or magnet couples  73 . 
     During a rainy, but humid day with no wind, the moisture released from the body is an issue, so perimeters  110  and  150  need to stay as open as possible. A plurality of sleeves  113  and tensioners  114  are located within sleeves extending from near the hood and a perimeter of the bottom water-proof fabric to shorten a length when worn—( FIG. 13 ). These connect points at perimeter  150  with the middle of perimeter  110 . Alternatively, such lines, if not prefabricated, could be installed by the user by connecting grommets  111  from perimeter  150  with the grommets in the middle of perimeter  110  by using ropes, rings or hooks  71 . 
     Phantom line  151  shows where a perimeter  151  of the one semi-circled material  100  when draped as a cape would extend if the length were not adjusted. 
     The perimeter of the bottom water-proof fabric comprises ground stake attachments  112  spaced around the perimeter thereof and attached to the bottom water-proof fabric spaced inwardly a distance from the perimeter of the bottom water-proof fabric. The distance from the perimeter is chosen sufficient to shield weather elements from an interior of the outdoor weather system when the bottom water-proof fabric is deployed pulled upward at the ground stake attachment. 
     The perimeter of the bottom water-proof fabric comprises grommets  111  spaced around the perimeter. 
     The upper fabric has stake couplers on at least the perimeter of the upper fabric for accommodating stakes to hold down the outdoor shelter system. The stake couplers on the perimeter of the upper fabric can use guys connected to rings connected to grommets. 
       FIGS. 52-60  illustrate progressive steps of one way the bottom fabric could be folded and stored into its hood. Initially all the perimeter zippers are closed  220  to itself,  260  with  290  and  270  with  280  ( 120  to itself,  130  with  140  and  160  with  170 ) are closed, as described above on  FIG. 49 . Then the bottom fabric  200 ( 100 ) is folded multiple times by pivoting at lines  41 ,  42 ,  43 ,  44 ,  45 ,  46  and  47 , until it becomes as big as the hood  201 ( 101 ). Then the hood is turned inside out to encompass the folded floor piece. Zipper  203 ( 103 ) becomes exposed and the user pulls slider  204 ( 104 ) until it is closed completely, thus forming a little pouch or cushion. 
       FIG. 61  illustrates a top view of an alternative extension embodiment for a bottom water-proof fabric.  FIG. 62  illustrates a view of an outside surface of the semi-circled piece of  FIG. 12  which can be used as an upper fabric in this alternative extension embodiment of the below  FIGS. 63 and 64 .  FIGS. 63 and 64  respectively illustrate detached and attached perspective views of this alternative extension embodiment. 
     Although it is possible a 6′ tall person to fit in the cape shelter on  FIG. 49 , most people would prefer to expand it with additional extension  900 . The extension  900  could be a flat panel or a three dimensional, bag or flip-flop shaped panel, seen in perspective on  FIG. 61 . Nevertheless the shape, it has zippers  960  and  970  at its perimeter. These zippers could be the two halves of an open-end type zipper with box  961 , pin  973 , slider  962 , and ends with stops  974  and  964 . 
     Alternatively, single-tape type zipper where  964  is replaced with a pin and  974  is replaced with box and slider, in a manner similar to the one used for the more complicated shelters described before. Single-tape type zippers, compared to the open-end type zippers offer the advantage of extra doors and ventilation openings, which are more important when constructing shelters for more than one person. 
     As seen on  FIG. 62 , a top view of the bottom fabric  100 , which is to be used on top for this particular shelter, at lines  81 - 87  the bottom fabric  100  is folded to take a three dimensional, pyramidal shape, seen in exploded view on  FIG. 63 . The enclosed compartment is constructed by inserting pin  163  into box  961  through slider  962 , and pin  973  into box  171  through slider  172 . The two sliders  172  and  962  then close into direction of points  974  and  964 — FIG. 64 . 
     The pyramidal structure is then secured with a rope  71  to a high point  91  and four stacks  70  inserted into the ground through loops  906 . These loops  906  are situated at  900 &#39;s four corners. They are double, one on each side of  900 &#39;s zippers— FIG. 61 , thus allowing  900  and  100  to be able to connect also when both are turned inside out. 
     In a similar manner, variations of  900  could be designed which are able to connect to a circled bottom fabric  200  or other rainwear. These panels always have zippers at its perimeter which mate by meshing with zippers at the rainwear perimeter. 
     The perimeter of the upper fabric is a semi-circle in the illustrated embodiment of  FIGS. 61-64 . A hood is located near a center of the substantially straight edge. 
     Trapezoid-shaped wall panel  995  and triangularly-shaped side panels  996  and  997  extend the length for a long legged individual to comfortably sleep on floor  990  of the bottom fabric of the tent. The bottom water-proof fabric comprises a trapezoid-shaped wall panel  995  attached at a bottom thereof to one end of a floor  990  of the bottom fabric of the tent and further comprises a right triangularly-shaped side panel  996  and a left triangularly-shaped side panel  997 , each right and left triangularly-shaped side panel attach at a bottom thereof to portions of sides at one end of the floor  990  of the bottom fabric of the tent. The one or more zipper tapes serially circumscribe the bottom perimeter of the bottom water-proof fabric at least a top of the trapezoid-shaped wall panel, one top side of each triangularly-shaped side panel, one end of the bottom fabric, and remaining of the portions of each side of the bottom fabric. The support at a central portion of a surface of the upper fabric comprises a rope  71  secured between a high point  91  such as a tree branch and on the upper fabric at a point  199  where the folds or seams come together or near the hood  101  or on the hood  101  itself. 
       FIG. 65  illustrates a cross-section view of a multilayer floor for a bottom water-proof fabric according to embodiments of the present inventions; 
       FIG. 66  illustrates a top view of an alternative construction for the extension embodiment of  FIG. 61  for a bottom water-proof fabric according to embodiments of the present inventions; and 
       FIG. 67  illustrates a perspective view of a backpack formed by folding the bottom water-proof fabric according to embodiments of the present inventions; 
     As demonstrated on  FIGS. 65-67 , constructing multilayer floor  990  for the extension  900 , increases its functionality. Imbedding a sleeping pad layer  991 , inflatable or made out of foam, and situating it between two layers of fabric  992  and  993 , adds thermo-insulation as shown on the cross-section view on  FIG. 65 . Also, forming one or more empty storage compartments  998  by attaching on top of  990  a layer of stretchable mesh  994 , is useful for adding extra thermo-insulation and for keeping clothes and other personal belongings, in organized and easy-to-reach manner. 
     Closing the zippers  960  and  970  and folding it at one or more lines  48  turns the extension  900  into a backpack. As shown on  FIG. 66 , the zippers  960  and  970  are single-tape type, and the enclosed compartment is formed by inserting the pins  963  and  973 , through sliders  962  and  972  respectively, into boxes  961  and  971  respectively. Shoulder straps  999  are helpful when carrying the backpack shown in  FIG. 67 . 
       FIG. 68  demonstrates the preferred embodiment of the invention. It is a hooded piece of fabric with internal surface  100 ′. It has semi-elliptical or a semi-circular shape, with a perimeter essentially formed by one straight  110  and one rounded line  150 . The said invention serves as a raincoat that could be turned into a shelter by asymmetrically folding and closing of the zippers at its peripheries. The hood  101 , permanently or temporarily attached at the middle of perimeter  110 , has a closed end zipper  103 , with slider  104 , at the hood face perimeter. The length of zipper  160  is equal to the combined length of zippers  120  and  130 . The length of zipper  170  is equal to the combined length of zippers  120  and  140 . Zippers  120 ,  130 ,  140 ,  160  and  170  are single-tape type zippers. A single-tape type zipper is a zipper, which has only one halve of tape with teeth, starts with a receptacle box, ends with an insertion pin, and has a slider in between. These zipper tapes are preferably all positioned in a series at the perimeter. While the zipper tapes can instead be positioned in series counterclockwise at the perimeter, clockwise is a preferred direction because the zipper pulls will be more easily operated by right-handed users. The loops  98 , which could have toggles  99 , are sewn to the zipper tapes or to the fabric. The loops  98  are situated at the increments of 15 degree at the perimeter  150 , or around the hood at the perimeter  110 . 
     The water-proof fabric has a perimeter consisting essentially of a straight section and a remaining section. The perimeter of the remaining section is circumscribed by first  170  and second  160  zipper tapes arranged in series. The perimeter of the straight section is circumscribed by third  140  and fourth  120  and fifth  130  zipper tapes. At least the third  140  and fifth  130  zipper tapes are arranged in series. The fourth zipper tape  120  is located centered around a center of the straight side with slider and receptacle box and insertion pin of the fourth zipper tape  120  symmetrically centered around the center of the straight side. The second zipper tape  160  extends along the remaining side to an end of the remaining side. The fifth zipper tape  130  extends along the straight side to the end of the straight side in an orientation of its slider and receptacle box or insertion pin to mesh at the corner with an orientation of another of slider and receptacle box or insertion pin of the second zipper tape  160 . The first  170  and second  160  zipper tapes are of similar lengths. The sliders and receptacle boxes and insertion pins of the first  170 , second  160 , third  140 , and fifth  130  zipper tapes face a same clockwise or counterclockwise direction along the perimeter of the water proof fabric. The third  140  and fourth  120  and fifth  130  zipper tapes are arranged in series. The sliders and receptacle boxes and insertion pins of the third  140  and fourth  120  and fifth  130  zipper tapes face the same direction along the straight section of the perimeter. The fourth  120  zipper tape is arranged in series in between the third  140  and fifth  130  zipper tapes. A base of hood  101  is coupled to the water-proof fabric near a center of the straight section of the water-proof fabric. The slider and receptacle box and insertion pin of the fourth zipper tape  120  face the same direction along the straight section of the perimeter. The third  140  and fifth  130  zipper tapes are positioned on the straight side of the water-proof fabric to form a cape when the third  140  zipper tape mates with the fifth zipper tape  130 . The fourth zipper tape is located at a position on the straight side of the water-proof fabric to form a cape when the fourth zipper tape  120  mates with itself. The zipper tapes are located at positions on the water-proof fabric to form a bivy tent when mating at least as follows: the first zipper tape  170  folds and mates with itself, and the second zipper tape  160  mates with the fifth zipper tape  130 . The zipper tapes are located at positions on the water-proof fabric to form a bivy tent when the second zipper tape  160  additionally mates with fourth zipper tape  120 . The zipper tapes are located at positions on the water-proof fabric to form a bivy tent when the third zipper tape  140  additionally mates with itself. The remaining section is substantially semicircular. 
       FIG. 69  is a detailed view of a cross section at the middle point of perimeter  110 , where it is crossed by line  96 , but it also represents the perimeter  110  in general. The fabric is folded toward its inner surface, forming a channel  294 , which runs the whole length of perimeter  110  and which could be used for inserting tent poles. It also serves as a flap which covers the zippers  140 ,  120 ,  130  and prevent water from coming through. A loop  98  may also be present, and it may have a toggle. The hood  101  is also attached at, and around of, the middle of perimeter  110 . A flap  89 , omitted on  FIG. 68  so that the zippers  120 ,  130 , and  140  could be visible, runs the whole length of perimeter  110 . The flap  89  has edge which is formed by sewing to the fabric of a core  90 . This core is made out of plastic or other material which would make the edge flexible but stiffer than if it was the fabric only. 
     Thus, the zippers  120 ,  130  and  140 , are covered on one side by flap formed by channel  294 , and on the other side by flap  89  with core  90 . All elements are stitched together by seams  97 . 
     Alternatively, the hood  101  could be attached under zipper  120  or outside, beneath the flap with channel  294 . 
       FIG. 70  is a detailed view of a cross section at the perimeter  150  at the point where it is crossed by line  95 , but it also represents the perimeter  150  in general. The fabric is folded toward its inner surface  100 ′, forming a channel  295 , which runs the whole length of perimeter  150  and which could be used for inserting tent poles. It also serves as a flap and its purpose is to cover the zippers  160  and  170  and prevent water from coming through. A loop  98  may also be present, and it may have a toggle. All elements are stitched together by seams  97 . Alternatively, besides channel  295 , which covers zippers  160  and  170  outside on perimeter  150 , a flap could also be sewn to cover the zippers on the inside. Thus channels  294  and  295  are formed on one side of the zipper tapes at all the fabric perimeters  110  and  150 . 
       FIG. 71  is a view in perspective of a cloak type raincoat garment, as it would be worn by a user. It is formed by closing zipper  120  to itself, then by inserting pin  123  into box  122 , trough slider  121  and closing the slider  121  into direction of the middle of zipper  120 . Zipper  130  could also be connected and closed to zipper  140 , or both could be left unconnected. 
       FIG. 72  is a view in perspective of a partially closed bivy type of shelter, which is hanged on a rope  71 , from a high point  91  on one end, and a loop  98  at the perimeter  150  at the other end. The shelter is formed by asymmetrically folding the fabric at line  95  on  FIG. 68 , inserting pin  163  into box  122  through slider  121 , inserting pin  133  into box  162  through slider  161  and closing sliders  121  and  161  against each other. 
       FIG. 73  is a slightly off top view of the next stage of the shelter formation. This time, however, zipper  170  is also closed, but to itself. This is done by inserting pin  173  into box  172  through slider  171  and closing slider  171  into direction of the middle of zipper  170 . Alternatively, instead of hanging from a high point, the shelter could be supported by a tent pole  50 . Zipper  140  could be left open for ventilation. 
       FIG. 74  is a top view of the same shelter, but this time, zipper  140  is also closed to itself by inserting pin  143  into box  142  through slider  141  and closing slider  141  into direction of the middle of zipper  140 . The newly formed enclosed compartment completely envelopes the user&#39;s slipping bag. Alternatively, instead of hanging from a high point or using a tent pole, the shelter could be left unsupported. 
     In this preferred embodiment the length of zipper  120  is 68 inches while the lengths of zippers  130  and  140  are 24.5 inches each. The total length of the combination of zipper  120  and  130 , including space of 0.5 inch between them, is the same as the length of zipper  160 —93 inches. The total length of the combination of zipper  120  and  140 , including space of 0.5 inch between them, is the same as the length of zipper  170 —93 inches. 
     Alternatively, this shelter could be formed by folding the fabric at lines  194  and  195  on  FIG. 68 . 
     This rainwear could be used for construction of other types of shelters too— FIG. 79 . For that purpose two rain capes are connected together as demonstrated on  FIG. 75-78 . 
     While the embodiments of  FIGS. 68-74  illustrate zipper tapes on the same side of the water proof fabric, some or all of the zipper tapes can instead be positioned on edges of the water proof fabric. 
       FIG. 75  is a top view of the connection. First, the two capes are aligned together. Then zipper  130  of the first one is connected to zipper  140  of the second one, zipper  120  of the first one is connected to zipper  120  of the second one and zipper  140  of the first one is connected to zipper  130  of the second one. 
       FIG. 76  is a top view of the connection in detail. Pin  133 ′ is inserted into box  142 ″ through slider  141 ″. Pin  143 ″ is inserted into box  132 ′ through slider  131 ′. The two sliders,  141 ″ and  131 ′, form the connection of zippers  130 ′ and  140 ″ by closing against each other. 
     Pin  123 ′ is inserted into box  122 ″ through slider  121 ″. Pin  123 ″ is inserted into box  122 ′ through slider  121 ′. The two sliders,  121 ″ and  121 ′, form the connection of zippers  120 ′ and  120 ″ by closing against each other. 
     Pin  143 ′ is inserted into box  132 ″ through slider  131 ″. Pin  133 ″ is inserted into box  142 ′ through slider  141 ′. The two sliders,  131 ″ and  141 ′, form the connection of zippers  140 ′ and  130 ″ by closing against each other. 
       FIG. 77  and  FIG. 78  represent cross section of the connection in detail. The cores  90 ′ and  90 ″ are brought together and the flaps  89 ′ and  89 ″ are rolled together to provide water resistance of the connection  120 ′- 120 ″. 
       FIG. 79  represents a variation of the preferred embodiment in which the channel  295 , which runs the entire semi-circular perimeter  150 , is split into at least three sectors. When constructing the bivy shelter and folding of the fabric is done at lines  94  and  95 , sector  296  could be used for inserting tent pole support  50 — FIG. 80 . Alternatively, sector  297 , if present, is being used, when the fabric is folded at lines  194  and  195 . 
       FIG. 80  demonstrates a slightly off top view in perspective of the tent pole supported bivy shelter, which uses a sector of the channel formed at the semi-circular perimeter, according to embodiments of the present inventions. 
       FIG. 81  represents an alternative embodiment in which, instead a piece of fabric with semi-circular perimeter, an angled one is used. Sewing zippers in straight lines makes angled shaped embodiments easier to manufacture, but closing zippers at angles makes such embodiments harder to use. Rainwear and shelter are formed as described before, however, the fewer the angles, the less feasible becomes the option of imbedding channels  295  at the perimeter  150  and running tent poles through them. These factors make angled embodiments inferior when compared to the other embodiments. 
     The embodiment on  FIG. 82 , besides an alternative shape, demonstrates the use of regular, open end type, zippers, instead of single-string ones. It also shows a different way of folding the fabric when wrapping the user&#39;s sleeping bag. Zipper  1060  has two halves, open end type zipper. One of these halves  1060 ′ is situated at the perimeter  150 ′, starts with a pin  1063  and ends with a zipper stop  1064 . The other halve  1060 ″ is at the perimeter  110 , starts with a box  1062 , ends with a zipper stop  1064  and has slider  1061  in between. Zipper  1040  has two halves, open end type zipper. One of these halves  1040 ′ is situated at the perimeter  150 ″, starts with a pin  1043  and ends with a zipper stop  1044 . The other halve  1040 ″ is at the perimeter  110 , starts with a box  1042 , ends with a zipper stop  1044  and has slider  1041  in between. Zipper  1070  is a two halves regular zipper. One of these halves  1070 ′ is situated at the perimeter  150 , starts with a pin  1073  and ends with a zipper stop  1074 . The other halve  1070 ″ is also at the perimeter  150 , starts with a box  1072 , ends with a zipper stop  1074  and has slider  1071  in between. Zipper  1020  is a two halves, open end type zipper. One of these halves  1020 ′ is situated at the perimeter  110 , starts with a pin  1023  and ends with a zipper stop  1024 . The other halve  1020 ″ is also at the perimeter  110 , starts with a box  1022 , ends with a zipper stop  1024  and has slider  1021  in between. 
       FIG. 83  demonstrates a top view of alternatively folded and fully closed bivy shelter, according to embodiments of the present inventions. To form a tent  1060 ′ and  1060 ″, the two halves of zipper  1060 , are connected in  FIG. 83 . This is done by inserting pin  1063  into box  1062 , through slider  1061 , and closing the slide  1061  into direction of zipper stops  1064 . Then  1070 ′ and  1070 ″, the two halves of zipper  1070 , are connected. This is done by inserting pin  1073  into box  1072 , through slider  1071 , and closing the slide  1071  into direction of zipper stops  1074 . And finally,  1040 ′ and  1040 ″, the two halves of zipper  1040 , are connected. This is done by inserting pin  1043  into box  1042 , through slider  1041 , and closing the slide  1041  into direction of zipper stops  1044 . 
     To form a rainwear garment,  1020 ′ and  1020 ″, the two halves of zipper  1020 , are connected— FIG. 85 . This is done by inserting pin  1023  into box  1022 , through slider  1021 , and closing the slide  1021  into direction of zipper stops  1024 . 
     Provided that the lightest fabric is chosen, the weight of a tent depends not only on how much fabric is used, or its surface area, but also on the quantity and the weight of the fastening elements attached to the fabric. This embodiment saves weight on fabric but also adds additional zipper tapes. It decreases the available volume of the tent and decreases the functionality of the product, which makes this embodiment inferior, when compared to the preferred embodiment. 
       FIG. 85  illustrates in a table a summary of embodiments of the present inventions. In the illustrated table, the symbol “=” means “connects to” and the symbol “+” means “and.” 
     Any letter designations such as (a) or (b) used to label steps of any of the method claims herein are step headers applied for reading convenience and are not to be used in interpreting an order or process sequence of claimed method steps. Any method claims that recite a particular order or process sequence will do so using the words of their text, not the letter designations. 
     Unless stated otherwise, terms such as “first” and “second” are used to arbitrarily distinguish between the elements such terms describe. Thus, these terms are not necessarily intended to indicate temporal or other prioritization of such elements. 
     Any trademarks listed herein are the property of their respective owners, and reference herein to such trademarks is generally intended to indicate the source of a particular product or service. 
     Although the inventions have been described and illustrated in the above description and drawings, it is understood that this description is by example only, and that numerous changes and modifications can be made by those skilled in the art without departing from the true spirit and scope of the inventions. Although the examples in the drawings depict only example constructions and embodiments, alternate embodiments are available given the teachings of the present patent disclosure.