SWIM CAP

This disclosure relates to a swim cap with a wall that can include a surface with a higher coefficient of friction (e.g., higher than conventional swim caps and/or higher than other surfaces of the swim cap). The surface finish can be positioned at various locations of an inner face of the swim cap, and in some examples, the surface finish is positioned near the edge of the swim cap (e.g., the terminal edge forming a perimeter around the head opening of the swim cap). In some examples, the band extending around the edge can be associated with a thicker wall of material, which can increase the modulus of elasticity and a tightness of the fit of the swim cap. The swim cap can include various materials, and in some examples, the swim cap comprises silicone.

BACKGROUND

Swim caps are often worn during swimming competitions, training, or exercise activities, such as to affect hydrodynamics. Swim caps can include a latex composition, and in some examples, swim caps are constructed from relatively flat mold or press, such as with a relatively broad and flat mold core.

DETAILED DESCRIPTION

This detailed description is related to a swim cap that more securely fits to an athlete's head. For example, an inward facing surface of the swim cap can include a surface finish that is configured to be less prone to slipping off of the athlete's head. In some examples, the surface finish can be associated with a higher coefficient of friction (e.g., higher than conventional swim caps and/or higher than other surfaces of the swim cap). The surface finish can be positioned at various locations of the inward facing surface, and in some examples, the surface finish is positioned near the edge of the swim cap (e.g., the terminal edge forming a perimeter around the head opening of the swim cap). For example, the surface finish can be at one or more positions along a band that extends around the edge of the swim cap. In some examples, the band extending around the edge can be associated with a thicker wall of material, which can increase the modulus of elasticity and a tightness of the fit of the swim cap.

Some conventional swim caps can be prone to inadvertently slip off of the athlete's head (e.g., due to hydrodynamic drag). In addition, some conventional swim caps can present challenges for athletes with more hair on their head (e.g., longer hair or thicker hair), such as by being uncomfortable and/or failing to provide a volume large enough and/or shaped to accommodate the hair. Further, some conventional swim caps can be less adaptable to fit a variety of different head shapes. In addition, some materials used to form swim caps can be prone to tearing (or failing in other ways) during manufacturing or in use. Also, some materials (e.g., latex) can be more allergenic, which can cause irritation and discomfort to wearers.

As such, in contrast to conventional swim caps, subject matter of the present disclosure can be less likely to slip off (e.g., based on the surface finish with the higher coefficient or friction and/or the thicker band with higher modulus of elasticity). In some examples, the other portions of the swim cap (e.g., other than the band) can include a thinner wall, which can be associated with a lower modulus of elasticity for easier stretching to accommodate hair and/or various head shapes. In at least some examples, the swim cap can operate as a base swim cap that is configured to be worn underneath a second swim cap (e.g., underneath an outer swim cap), and the swim cap can include one or more surface finishes on the outer surface configured to improve fit and operability with the outer swim cap.

Some examples of the present disclosure are directed to subject matter for manufacturing a swim cap, including a swim cap with a domal wall. In some instances, manufacturing a swim cap with a domal wall can include different equipment and/or processes, as compared to a swim cap with more planar or flat walls. In some examples, a mold for forming a swim cap with a domal wall can include a core (e.g., a domal core) and a cavity (e.g., a two-part cavity that can selectively open and close around the core). In addition, surface finishes associated with the swim cap can be formed by configuring the surfaces of the cavity and/or the core. For example, if a higher-gloss surface is desired, then a surface of the core and/or the cavity can be configured with a smoother, higher-gloss surface (e.g., as compared to a matte surface of the swim cap that can be formed via a rougher surface of the cavity or the core). In addition, if a textured surface is desired, then the surface of the cavity and/or core can be textured or include a negative relief of the texture. In some examples, the mold (e.g., with the domal core) can be used to manufacture a silicone swim cap (e.g., by injection molding), including the desired surface finishes (e.g., higher grip surface in the inner face). In contrast to conventional approaches, the mold with the domal core can allow for manufacturing processes that are less likely to cause the swim cap to tear (e.g., during manufacturing). In addition, the silicone-based swim cap can be more hypoallergenic (e.g., as compared to latex in some instances). In some example, the silicone-based swim cap can provide a desired amount of elasticity (e.g., for conforming to a wearer's head shape, hair, etc.), while also providing durability and other desired properties.

“A,” “an,” “the,” “at least one,” and “one or more” might be used interchangeably to indicate that at least one of the items is present. When such terminology is used, a plurality of such items might be present unless the context clearly indicates otherwise. All numerical values of parameters (e.g., of quantities or conditions) in this specification, unless otherwise indicated expressly or clearly in view of the context, including the appended claims, are to be understood as being modified in all instances by the term “about” whether or not “about” actually appears before the numerical value. “About” indicates that the stated numerical value allows some slight imprecision (with some approach to exactness in the value; approximately or reasonably close to the value; nearly). If the imprecision provided by “about” is not otherwise understood in the art with this ordinary meaning, then “about” as used herein indicates at least variations that may arise from ordinary methods of measuring and using such parameters. In addition, a disclosure of a range is to be understood as specifically disclosing all values and further divided ranges within the range. If a definition of “about” is necessary for interpreting a term of this disclosure, “about” refers to +/−10% of a given value.

The phrases “formed from” and “formed of” are also intended throughout this disclosure and the accompanying claims to be inclusive, and to specify the presence of stated materials, features, steps, operations, elements, or components, but to not preclude the presence or addition of one or more other materials, features, steps, operations, elements, or components unless otherwise indicated.

For consistency and convenience, directional adjectives might be employed throughout this detailed description corresponding to the illustrated examples. Ordinary skilled artisans will recognize that terms such as “above,” “below,” “upward,” “downward,” “top,” “bottom,” etc., may be used descriptively relative to the figures, without representing limitations on the scope of the inventive embodiments described in this Specification, and as further defined by the claims.

In some examples, this description can refer to modulus of elasticity and coefficient of friction. These properties can be measured using one or more techniques that known to ordinary skilled artisans based on the context of this disclosure.

In some examples, modulus of elasticity includes resistance to being elastically deformed (e.g., non-permanently) when a stress or force is applied. A lower modulus of elasticity (e.g., relative as between two items) indicates a lower resistance to be elastically deformed when subjected to a given stress or force, and a higher modulus of elasticity (e.g., relative as between two items) indicates a higher resistance to being elastically deformed when subjected to the given stress or force. In some examples, modulus of elasticity can be determined for an area or portion of a swim cap by connecting the area or portion to a gripping device (e.g., via a clamp), applying a pulling force at a given unit measurement, and determining the degree of stretch (e.g., percentage of elongation relative to the resting state). The modulus of elasticity of different areas can be compared by subjecting each area to the same pulling force and comparing the degrees of stretch.

In some examples, coefficient of friction is a value quantifying resistance to motion between two objects, such as a surface of the swim cap and human skin. Static friction can describe the amount of force required to move the swim cap relative to the human skin, when the swim cap is initially at rest relative to the human skin. Kinetic friction can describe the amount of force required to move the swim cap relative to human skin, when the swim cap is already in motion relative to the human skin. A lower coefficient of friction or static friction or kinetic friction (e.g., relative as between two items) indicates a lower amount of force is necessary to move the swim cap relative to the human skin. In some examples, a higher coefficient of friction or static friction or kinetic friction (between a swim cap and human skin) can translate to a swim cap that is less likely to slip off a wearer. In some examples, coefficient of friction is a value quantifying resistance to motion between a surface of the swim cap (e.g., an outer facing surface) and water.

The terms “external” and “internal” as used herein are relative terms such that a layer that is external is positioned external to one or more internal layers, and a layer that is internal is positioned internal to one or more external layers. The term “innermost-facing surface” when used with respect to the support garment means a layer that is positioned closest to a body surface of a wearer compared to other layers of the support garment. The term “outermost-facing surface” when used with respect to the support garment means a layer that is positioned closest to the external environment with respect to other layers of the support garment. Positional terms such as “medial” and “lateral” are used in the customary anatomical sense.

As used in this disclosure, “domal” can indicate a structure or wall having a portion of which is dome-like. For example, an inner face can include a concave contour and the outer face can include a convex contour. In some examples, a domal wall can include at least some portions that are relatively symmetrical (e.g., similar contours or degree of convexity or concavity), and the wall can also be asymmetrical in some respects and still be considered dome-like. A domal wall is not necessarily hemispherical, but it can be hemispherical. In some examples, the contour of the concave first face can correspond to an anatomical region of a wearer. Various aspects are described below with reference to the drawings. However, examples of the present disclosure are not limited to those illustrated in the drawings or explicitly described below. It also should be understood that the drawings are not necessarily to scale, and in certain instances details may have been omitted (e.g., for ease of illustration).

Referring now toFIG.1,FIG.1depicts an example swim cap110that includes a wall111(e.g., a domal wall) that at least partially encloses a volume112for containing a portion of a wearer's head. The wall111can compositionally comprise various elastic materials, such as silicone or other elastomeric, hypoallergenic materials. As used herein, an elastic material can resiliently stretch (e.g., under tension) from its original length and to substantially return to its original length (e.g., when the tension force is removed).

In addition, the swim cap110includes an edge114(e.g., terminal edge of the domal wall111) that forms a perimeter around an opening116for donning and doffing the swim cap110. The swim cap110also includes an inner face118that faces towards the head when the swim cap110is worn and an outer face120that faces away from the head when the swim cap110is worn. In some examples, the swim cap110can include a band122circumferentially extending along the edge114and around the periphery of the opening116, and the band122can comprise a width124extending from the edge114to an opposing point126spaced apart from the edge114. In some examples, the opposing point126can be associated with a change from properties associated with the band122to properties associated with other portions of the swim cap110positioned further away from the edge114. That is, a position associated with the opposing point126can be based on (e.g., located at) a point at which properties associated with the cap transition from properties associated with the band122to a different set of properties. In some examples, one or more properties that can change near the opposing point126can include a wall thickness (e.g., thickness of the wall111) and a surface finish on the inner face118and/or on the outer face120.

In at least some examples of the present disclosure, the inner face118can include a surface finish configured to be less prone to slipping off of the athlete's head. As used herein, surface finish can refer to a surface texture, a material deposit applied to a surface, or a combination thereof. A surface texture can include a surface relief of positive material and negative spaces molded into the surface during manufacturing of the surface. A surface texture an also include a surface relief formed via additive manufacturing processes and/or subtractive manufacturing processes. In some examples, the surface finish can be associated with a higher coefficient of friction relative to human skin (e.g., higher than conventional swim caps and/or higher than other surfaces of the swim cap). The surface finish can be positioned at various locations of the inner face118, and in some examples, the surface finish is positioned near the edge114of the swim cap110. For example, the surface finish can be at one or more positions along the band122. The surface finish can include various properties. In some examples, the surface finish can comprise a plurality of raised protuberances that protrude from the inner face118towards the volume112and/or a series of grooves or voids or interstitial spaces that form a pattern of positive-relief material portions. The protuberances and the positive-relief material portion can include nodules, bumps, ribs, ridges, polygonal shapes, or other shapes. For example, the enlarged view128depicts a plurality of raised nodules130.

In some examples, the surface finish on the inner face118can include other or different properties. For example, referring toFIG.2, a swim cap210is depicted with at least some properties similar to the swim cap110, and for brevity, those same properties are not described again (but it is understood that the same description can apply to the swim cap210). In accordance with some examples, the swim cap210can include one or more surface finishes associated with the inner face218. For example, the enlarged view228depicts an example surface finish, which can include a combination of matte portions230and high-gloss portions232.

In examples, the combination of matte portions230with the high-gloss portions232can contribute to, or impart, a higher coefficient of friction (e.g., as between a portion of the swim cap and human skin). In at least some examples, the terms “matte,” “low-gloss” and “high-gloss” (and “lower-gloss” and “higher-gloss”) refer to relative degrees as between the portions230and232, or more generally, between surface finishes or between different aspects of one surface finish. Surface finishes with “lower-gloss” are more matte or duller, and surface finishes with “higher-gloss” are less matte or less dull or have a higher luster. For example, the portion230can be more matte and lower gloss or less high-gloss than the portion232, and the portion232can be more high-gloss or higher gloss and less matte than the portion230. In some examples, a higher gloss surface of the swim cap can be associated with a higher coefficient of friction as against human skin and as compared to a lower gloss surface, which can be associated with a lower coefficient of friction. For instance, the portions232inFIG.2can include grippy protuberances that decrease the likelihood of the swim cap slipping off the wearer.

In at least some examples, a gloss of a surface can be determined using a glossmeter to measure specular reflection by projecting a light beam at a fixed intensity and angle onto the surface and measuring the amount of reflected light at an equal but opposite angle. In some examples, a surface can be lower gloss or higher gloss, as compared to another surface, by comparing the relative amounts of reflected light measured using a gloss meter. A surface that is associated with higher amounts of reflected light (as compared to a different surface) can be described as higher gloss or less matte, whereas the different surface that is associated with lower amounts of reflected light can be described as lower gloss or more matte or duller.

In at least some examples, the matte portions230and the high-gloss portions can comprise a repeating pattern. In at least some examples, the matte portions230can comprise a pattern of n-polygonal shapes that are spaced apart by recessed interstitial spaces of the high-gloss portion232. In some examples, the high-gloss portion232can comprise a pattern of n-polygonal shapes that are spaced apart by recessed interstitial spaces of the matte portion230.

InFIG.2, the surface finish includes a pattern of triangular high-gloss portions232that are separated by recessed interstitial spaces of the matte portions230. These are just examples, and the pattern can include a variety of different shapes. In some examples, the recessed interstitial spaces have a strip-like form (e.g., relatively long and narrow where the length is longer than the width). In some examples, the strip-like forms can be relatively straight. In some examples, the strip-like form can be wavy. In some examples, the recessed interstitial spaces can have an irregular form (e.g., where the protuberances are not necessarily aligned in rows or a pattern). In some examples, the raised protuberances may be organized in a repeating pattern, or in other examples, the raised protuberances may be organized irregularly. In some examples, the surface finish comprises a plurality of high-gloss and low-gloss surfaces that are not raised or do not protrude.

Referring now toFIGS.3A and3B, an example swim cap310is depicted, and the swim cap310is illustrated inside-out, such that the inner face318(e.g., configured to face towards the wearer) is facing outwards and the outer face320(e.g., configured to face away from the wearer) is facing inwards. In examples, the swim cap310can include at least some properties similar to the swim cap110and/or the swim cap210, and for brevity, those same properties are not described again (but it is understood that the same description can apply to the swim cap310).

In examples, the swim cap310can include a band324extending around the edge314. In at least some examples, the band324can be associated with a thicker wall of material. For example, the band324can include a first thickness334that is thicker than other portions of the swim cap310, which (as compared to the band324) are spaced further away the edge314, such as portions associated with second thickness336. In some examples, the first thickness334can be in a range of about 1.5 mm to about 2.5 mm; or about 2.0 mm. In some examples, the second thickness336can be in a range of about 0.7 mm to about 1.5 mm.

In some examples, the band324and/or the swim cap310can include a tapered portion338that tapers in thickness as the wall of the swim cap310transitions from the first thickness334to the second thickness336. In at least some examples, the band324can, based on the thicker wall, be associated with a higher modulus of elasticity, which can contribute to a more secure fit against the wearer's head and can decrease the likelihood of the swim cap310inadvertently slipping off (e.g., due to hydro dynamic drag).

In some examples, at least a portion of the inner face318comprises a matte surface finish, such as in the crown or apex portion of the cap. In examples, a matte finish can (as compared to a higher-gloss surface) be less likely to pull hair when the cap is being put on or taken off and/or when the cap is shifting on the wearer when in use. In other examples, at least a portion of the inner face comprises a higher gloss surface finish, such as where additional grip is desired (e.g., near the band324). In some examples, the swim cap310can also include, on the inner face318, one or more regions along the band324associated with a higher coefficient of friction (e.g., higher than conventional swim caps and/or higher than other surfaces of the swim cap). For example, the band324can include a first surface finish (e.g.,FIG.3C) similar to the surface finish inFIG.1, a second surface finish (e.g.,FIG.3D) similar to the surface finish inFIG.2, or a combination thereof. As such, in contrast to conventional swim caps, subject matter of the present disclosure can be less likely to slip off (e.g., based on the surface finish with the higher coefficient or friction and/or the thicker band324with higher modulus of elasticity).

The band324can comprise a width325(e.g.,FIG.3B) extending from the edge314to an opposing point326spaced apart from the edge314. In some examples, the opposing point326can be associated with a change in properties associated with the band324to properties associated with other portions of the swim cap310positioned further away from the edge314. That is, a position associated with the opposing point326can be based on (e.g., located at) a point at which properties associated with the cap310transition from properties associated with the band324to a different set of properties, such as wall thickness, surface finish, etc. In examples, the band324can include a width dimension325(e.g., from the edge314to the point326) that is in a range from about 1.0 cm to about 6 cm, or from about 2 cm to about 5 cm, or from about 3 cm to about 4 cm. In some examples, the width dimension can include a dimension that is a ratio of the overall height308of the cap310, which can be defined by a distance308between the edge314and the apex309of the crown of the swim cap310. For instance, in some examples, the ratio of the width325to the overall height308can be in a range of about 1:3 to about 1:8. In some examples, the ratio of the width325to the height308is about 1:5.

In some examples, the width325can vary at different positions around the cap310. For example, the front portion of the cap310can be associated with a first width325, the side portions of the cap310can be associated with a second width325, and the back portion of the cap310can be associated with a third width. In examples, at least one of the second width and the third width can be different than the first width. For example, the first width can be smaller than or larger than at least one of the second width and the third width.

As indicated above, the band324can be associated with the thickness334(e.g., wall thickness). In some examples, the band324can be associated with a plurality of wall thicknesses, such as where a surface finish includes a pattern of protuberances. For example, referring toFIGS.3E and3F, cross sectional views are depicted of different embodiments, taken along the cross-reference line3-3inFIG.3D.

Referring toFIG.3E, the band324ecan be associated with protuberances (e.g.332e) and interstitial spaces (e.g.,330e) between the protuberances332e. In some examples, the band324ecan be associated with a first thickness342, which is directly adjacent the edge314e. In some examples, at least some of the protuberances332ecan also be associated with the first thickness342. In addition, the interstitial spaces330ecan be associated with a second thickness344. In some examples the interstitial spaces330ecan include a consistent depth as the interstitial spaces330eare extend away from the edge314e.

In some examples, referring toFIG.3F, the band324fcan be associated with protuberances332fand interstitial spaces330fbetween the protuberances332f. In some examples, the band324fcan be associated with a first thickness346, which is directly adjacent the edge314f. In some examples, at least some of the protuberances332fcan also be associated with the first thickness346. In addition, the interstitial spaces330fcan include various depths (e.g., relative to the face318), which can depend on a location of the interstitial space within the band324f. In at least some examples, the interstitial spaces330fcan gradually transition from a shallower depth, which is closer to the edge314f, to deeper depth that is farther from the edge314f, and then gradually transition from the deeper depth to a shallower depth near the tapered portion338. As such, a wall thickness associated with the interstitial spaces330fcan transition (e.g., gradually or step-like) from a larger thickness348closer to the edge314f, to a smaller thickness350in a middle region of the band324f, and back to a larger thickness352closer to the tapered portion338f.

In other words, the distance between the outer face320fand the recessed interstitial spaces330fis smaller in the second area356than in the first area354or third area358. Areas354and358can be similar such that the shallower recessed interstitial spaces330fand thicker walls348and352can contribute to a larger modulus of elasticity, which can contribute to a more secure fit against the wearer's head. Area356having deeper recessed interstitial spaces and a thinner wall (as compared to areas354and358), can contribute to a decreased modulus of elasticity such that the wearer may more easily stretch the band324fover their head, hair, goggles, or other accessories. In some examples, the band324fcan be associated with multiple modulus of elasticity values, such that some areas of the band324fstretch more or are more secure than other areas of the band324f, which can contribute to both secure fit and the ability to stretch the cap over one's head. In at least some examples, the terms “shallow” and “deep,” “thinner” and “thicker” refer to relative degrees as between areas354,356, and358or more generally, between surface finishes or between different areas of one surface finish.

In some examples, other portions of the swim cap (e.g., other than the band324) can include a thinner wall (e.g., the wall associated with the second thickness336that is smaller than the first thickness334), which can be associated with a lower modulus of elasticity (e.g., lower than the modulus associated with the thicker band324). As such, the thinner wall with the lower modulus of elasticity can more easily stretch to accommodate hair (e.g., longer hair, thicker hair, braided hair, etc.) and/or various head shapes. In some examples, regions associated with a wearer's hair (more superior areas of the cap310relative to the edge314, such as higher up in the crown or apex) have a thinner wall and create a lower modulus of elasticity to allow for stretch to accommodate hair. In some examples, areas with thinner walls can be positioned along the midline of the cap, so as to align with hair that has been pulled back prior to donning the cap. In some examples, regions more proximate to the band (other than the band) have a thicker wall (as compared to the wall associated with more superior regions of the swim cap310) and create a higher modulus of elasticity to avoid the cap slipping off (as compared to the lower modulus of elasticity of more superior regions of the swim cap310).

In at least some examples, a swim cap110,210, and/or310can operate as a base swim cap that is configured to be worn underneath a second swim cap (e.g., underneath an outer swim cap—not illustrated), and the swim cap can include one or more surface finishes on the outer surface configured to improve fit and operability with the outer swim cap. In some examples, a swim cap110,210, and/or310operating as a base swim cap can interlock with the second outer swim cap by the surface finishes of the base cap interacting with the surface finishes of the second swim cap. In some examples, swim cap110,210, and/or310may operate as the second outer swim cap and can interlock with the base swim cap by the surface finishes of the base cap interacting with the surface finishes of the second swim cap.

Referring now toFIGS.4A-4C, an example swim cap410is depicted, and the swim cap410comprises an outer face420(e.g., configured to face away from the wearer). In examples, the swim cap410can include at least some properties similar to the swim cap110, the swim cap210, and or the swim cap310, and for brevity, those same properties are not described again (but it is understood that the same description can apply to the swim cap410). In examples, the outer face420of the swim cap410can include one or more regions having different surface finishes. For example, the swim cap410is depicted in the different views ofFIGS.4A,4B, and4Cwith one or more first zones450associate with a first surface finish and one or more second zones452associated with a second surface finish, which is different from the first surface finish. The first surface finish and the second surface finish can vary in one or more respects. For example, the first surface finish and the second surface finish can vary in the smoothness or roughness associated with the respective surfaces (e.g., one surface finish may be of higher-gloss than another). In some examples, the surface finish can comprise a plurality of protuberances that protrude from the outer face (e.g.,120, portion450, portion452, etc.) which may take the form of nodules, bumps, ribs, ridges, or raised polygonal shapes. In addition, one surface finish can include a higher-gloss than the other surface finish, which can include a lower gloss finish or a matte finish. In examples, the varied surface finishes can be associated with various operations of the swim cap410. For example, in some instances, the surface finishes can be configured to affect hydro dynamics (e.g., by reducing drag such as by affecting the boundary layer). In some examples, the outer face (e.g.,120, portion450, portion452, etc.) surface finish is associated with a lower coefficient of friction (e.g., lower than conventional swim caps and/or lower than other surfaces of the swim cap). In some examples, the surface finishes can be configured to help retain swim goggles.

Referring now toFIG.5A-5F, an example swim cap510is depicted inside out, and the swim cap510comprises an inner face530(e.g., configured to face toward the wearer). In examples, the swim cap510can include at least some properties similar to the swim cap110, the swim cap210, the swim cap310, and or the swim cap410, and for brevity, those same properties are not described again (but it is understood that the same description can apply to the swim cap510). In examples, the inner face530of the swim cap510can include one or more surface-finish regions524a-524cassociated with a band524having varied properties. For example, in some examples, the regions524a-524care associated with different sizes of surface area that include a respective surface finish. For instance, the size or amount of the surface area can be based on the height of the region covered with a respective surface finish (e.g., where the first region524ais thicker/taller/wider than the third region524c, which is thicker/taller/wider than the second region524b.

For example, the swim cap510is depicted in the different views ofFIGS.5A,5B, and5Cwith one or more widths associated with the band524, where the widths are associated with a portion of the band524that include the textured surface finish. In some examples, the textured surface finish is associated with a higher coefficient of friction, which can translate to feeling (for the wearer) more “grippy.”FIG.5Adepicts a side view of the example swim cap510, and the side view includes the first region524aincluding a width524e(FIG.5E) and a second region524b, which corresponds with a width524d(FIG.5D). In examples, the first width524eis wider or larger than the second width524d. In some examples, first width524eis associated with the forehead region of the wearer and provides a coefficient of friction (e.g., grippyness) that is conducive to retaining the cap on the wearer (e.g., by not slipping from the forehead). In other examples, first width524emay be associated with other regions of the wearer. In some examples, second width524dis associated with the side head regions of the wearer (e.g., regions associated with ears and/or the side of the head and/or goggle straps) and provides a lower coefficient of friction (as compared to first width524e). In some instances, the lower grip along the sides (based on the second region524b) can improve ear comfort for the wearer. In some examples, the coefficient of friction is the same between first width524eand second width524d. In some examples, first width524etapers into second width524d, and in other examples, there is no tapering between the two widths.

FIG.5Bdepicts a front view of example swim cap510associated with the first width524eassociated with the forehead region of the wearer and configured to provide a surface with a higher coefficient of friction to avoid slipping off the wearer's forehead and a second width524dassociated with the side head regions of the wearer. In other examples, first width524eand second width524dmay be associated with other regions of the wearer. In some examples, first width524eis thicker or larger than second width524d. In some examples, first width524etapers into second width524d, and in other examples, there is no tapering between the widths.

FIG.5Cdepicts a back view of example swim cap510, including the third region524cof the band524, and is associated with the second width524dand third width524f(FIG.5F), the third width524fbeing wider than second width524d. In some examples, the third region524cand the third width524fis associated with a neck region of the wearer and provides a degree of surface friction conducive to avoid slipping off the neck region of the wearer. In some examples, third width524fmay be the same width as first width524eor it may be different. In some examples, the properties are the same or similar between first width524e, second width524d, and third width524f. In some examples, third width524ftapers into second width524d, and in other examples, there is no tapering between the widths.

As indicated above, the band524can have various surface finishes associated with the first region524a, second region524b, and third region524c. In some examples, the band524can be associated with a plurality of wall thicknesses corresponding to first region524a, second region524b, and third region524csuch as where a surface finish includes a pattern of protuberances. For example, referring toFIG.5D-5F, cross sectional views are depicted of different embodiments, taken along the respective cross-reference lines inFIGS.5D-5F.

Referring toFIG.5D, second width524dassociated with the second region524bcan be associated with protuberances (e.g.532d) and interstitial spaces (e.g.,530d). In some examples, at least a portion of the second width524dassociated with the second region524bis associated with the cross section shown inFIG.5D. In some examples, the second width524dassociated with the second region524bhas shallower interstitial spaces530d(as compared to the interstitial spaces inFIG.5EandFIG.5F) and correspond with a first wall thickness550d. In some examples, the second width524dassociated with the second region524bis associated with a plurality of wall thicknesses. In some examples, the first wall thickness550dis similar to the wall thickness in the other regions.

Referring toFIG.5E, first width524eassociated with the first region524ahas deeper interstitial spaces530e(as compared to the interstitial spaces inFIG.5D) and corresponds with a second wall thickness550e. In some examples, first wall thickness550dis thinner than second wall thickness550e, and in other examples, first wall thickness550dand second wall thickness550eare the same. In some examples, the first width524eassociated with the first region524ahas interstitial spaces530eof the same depth (as compared to the interstitial spaces inFIG.5DandFIG.5F) and in other examples, the first region524ahas interstitial spaces530eof different depths (as compared to the interstitial spaces inFIGS.5D and5F). In some examples, the first width524eassociated with the first region524ais associated with a plurality of wall thicknesses.

Referring toFIG.5F, the third width524fassociated with the third region524chas deeper interstitial spaces530f(as compared to the interstitial spaces inFIG.5D) and corresponds with a third wall thickness550f. In some examples, the first wall thickness550d, second wall thickness550e, and the third wall thickness550fare the same, and in other examples, third wall thickness550fis different from second wall thickness550eand first wall thickness550d, or a combination thereof. For example, third wall thickness550fmay be thinner than second wall thickness550e. In some examples, the third width524fassociated with the third region524cis associated with a plurality of wall thicknesses.

Referring now toFIG.6, an example swim cap600is depicted having a wall configured to form around a human head. In examples, the swim cap600can include at least some properties similar to the swim cap110, the swim cap210, the swim cap310, the swim cap410, and/or the swim cap510and for brevity, those same properties are not described again (but it is understood that the same description can apply to the swim cap600). In some examples, the terminal edge614of the swim cap600forms contours around the forehead, ears, or neck. For example, swim cap600includes a concave contour along the terminal edge614. In other examples, the contour may be convex. In some examples, the portion of the swim cap600associated with containing the user's hair may be oblong such that hair may easily fit inside. For example, swim cap600may be formed in a shape corresponding to a human head with hair contained at the superior or apex region of the head. In other examples, the swim cap is dome shaped and may not have contours around the forehead, ears, and neck.

A swim cap (e.g., the swim cap(s)110,210,310,510, and600) can be constructed using various approaches. Referring toFIG.7, in at least some examples, a swim cap can be molded using a mold710having a cavity712and a core714(e.g., domal core). For example, the cavity712can include a two-part cavity having a first part712aand a second part712bthat can be moved together (e.g., slid together such that the pins on the second part712binsert into the recesses on the first part712a) to enclose a space between the core714and the cavity712. A material (e.g., silicone) can then be injected into the space between the core714and the closed cavity712to form a swim cap.

In examples, a swim cap can be molded inside out, such that the outer face (e.g.,120, portion450, portion452, etc.) is oriented towards the core714and the inner face (e.g.,118,218,318, and530) is oriented towards the cavity712. As such, the surface of the core714can be configured to impart one or more surface finishes on the outer face (e.g.,120, portion450, portion452, etc.) of the swim cap, and the surface of the cavity712can be configured to impart one or more surface finishes on the inner face (e.g.,118,218,318, and530) of the swim cap. For example, where a high-gloss surface finish is desired in association a face of the swim cap, the corresponding surface of the core and/or the cavity can include a high-gloss surface (e.g., smoother surface). In some examples, where a matte finish is desired, the cavity and/or the core can include a rougher surface. In some examples, where one or more finishes is desired in association with a face of the swim cap, the cavity and/or the core can include both regions with high-gloss surface and regions with less high-gloss surfaces. For example, the core714can include regions that correspond with the regions450and452and that are configured to impart a desired surface finish (e.g., higher-gloss to impart a smoother surface and rougher to impart a more matte finish).

In some examples, a band716extending around a lower margin of the cavity712(e.g., along the lower margin of both the first part712aand the second part712b) can be configured to impart one or more surface finishes (e.g.,130,230,232, etc.) on the band (e.g.,124,324,524) of the swim cap. In some examples, the band716can include debossed cavities configured to form the raised protuberances, for example raised nodules130, and/or the band716can include a pattern of smoother and rougher surfaces to form corresponding high-gloss and matte surface finishes (e.g., corresponding with230and232). Furthermore, in some examples, the band716can be recessed into the surface of the cavity712, such that a swim-cap band (e.g.,324) molded via the corresponding cavity band716can include a first wall thickness (e.g.,334) that is thicker than other walls of the of the swim cap. That is, when the cavity sides are closed, the space between the band716and the core714can be wider than the space between other regions of the cavity712and the core714.

Clauses

Clause 1. A swim cap comprising: a wall at least partially enclosing a volume; the wall comprising an inner face facing towards the volume; a terminal edge forming a boundary around an opening to the volume; the inner face comprising a first region associated with a first surface finish; and the inner face comprising a second region that is more proximate, as compared to the first region, to the terminal edge and that is associated with a second surface finish, which is different from the first surface finish.

Clause 2. The swim cap of clause 1, wherein the first surface finish comprises a lower-gloss than the second surface finish.

Clause 3. The swim cap of clauses 1 or 2, wherein the second surface finish, as compared to the first surface finish, comprises a higher coefficient of friction.

Clause 4. The swim cap of any of clauses 1 through 3, wherein the wall compositionally comprises silicone.

Clause 5. The swim cap of any of clauses 1 through 4, wherein the second surface finish comprises a plurality of high-gloss surfaces and a plurality of low-gloss surfaces that are not raised.

Clause 6. The swim cap of any of clauses 1 through 5, wherein the plurality of high-gloss surfaces and the plurality of low-gloss surfaces are polygonal shapes.

Clause 7. The swim cap of any of clauses 1 through 5, wherein the plurality of high-gloss surfaces and the plurality of low gloss surfaces are irregular shapes.

Clause 8. The swim cap of clauses 6 or 7, wherein the plurality of high gloss surfaces and the plurality of low gloss surfaces are arranged in a pattern.

Clause 9. The swim cap of clauses 6 or 7, wherein the plurality of high gloss surfaces and the plurality of low gloss surfaces are arranged irregularly.

Clause 10. The swim cap of any of clauses 1 through 4, wherein the second surface finish comprises a plurality of raised protuberances and recessed interstitial regions.

Clause 11. The swim cap of clause 10, wherein a surface of the raised protuberances is higher gloss and a surface of the recessed interstitial spaces is lower gloss.

Clause 12. The swim cap of any of clauses 1 through 11, wherein at least a portion of the second region comprises a first wall thickness, which is thicker than a second thickness associated with one or more other regions of the wall.

Clause 13. The swim cap of any of clauses 1 through 12, wherein the wall comprises a tapered portion that gradually transitions in thickness from the first wall thickness to the second wall thickness.

Clause 14. The swim cap of any of clauses 10 through 13, wherein: the swim cap further comprises a band circumferentially extending around the opening and comprising the plurality of raised protuberances and recessed interstitial spaces; a portion of the wall is associated with the band and comprises a first wall thickness associated with a first interstitial space and a second wall thickness associated with a second interstitial space; and the first wall thickness is different from the second wall thickness.

Clause 15. The swim cap of any of clauses 10 through 14, wherein the raised protuberances comprise a polygonal shape.

Clause 16. The swim cap of any of clauses 10 through 14, wherein the raised protuberances comprise irregular shapes.

Clause 17. The swim cap of clauses 15 or 16, wherein the raised protuberances and recessed interstitial spaces are arranged in a pattern.

Clause 18. The swim cap of clauses 15 or 16, wherein the raised protuberances and recessed interstitial spaces are arranged irregularly.

Clause 19. The swim cap of any of clauses 1 through 18, wherein the wall comprises an outer face comprising a third region associated with a third surface finish and a fourth region associated with a fourth surface finish, which is different from the third surface finish.

Clause 20. The swim cap of clause 19, wherein the third surface finish comprises a higher gloss than the fourth surface finish.

Clause 21. A swim cap comprising: a wall at least partially enclosing a volume; the wall comprising an inner face facing towards the volume; a terminal edge forming a boundary around an opening to the volume; the inner face comprising a first region associated with a first surface finish; the inner face comprising a second region that is more proximate, as compared to the first region, to the terminal edge and that is associated with a second surface finish, which is different from the first surface finish, the second surface finish comprising a plurality of raised protuberances and recessed interstitial spaces; and the recessed interstitial spaces associated with a first wall thickness and a second wall thickness, which is different than the first wall thickness.

Clause 22. The swim cap of clause 21, wherein the first surface finish comprises, as compared to the plurality of raised protuberances, a lower gloss surface finish.

Clause 23. The swim cap of clauses 21 or 22, wherein the plurality of raised protuberances comprise, as compared to the recessed interstitial spaces, a higher gloss surface finish.

Clause 24. The swim cap of clauses 21 or 22, wherein the plurality of raised protuberances comprise, as compared to the recessed interstitial spaces, a lower gloss surface finish.

Clause 25. A mold configured to form a swim cap, the mold comprising: a domal core comprising a first surface finish; a cavity comprising a second surface finish, which is different from the first surface finish; and the cavity comprising, in association with a lower margin of the cavity, a band comprising a third surface finish.

Clause 26. The mold of clause 25, wherein the band is recessed into a surface of the cavity, such that a space between the band and the domal core is larger than a space between other regions of the cavity and the domal core.

Clause 27. The mold of clauses 25 or 26, wherein the band comprises debossed cavities.

Clause 28. The mold of any of clauses 25 through 27, wherein the band comprises a pattern of higher gloss and lower gloss surfaces.

Clause 29. The mold of any of clauses 25 through 28, wherein the domal core and the first surface finish are configured to form an outer face of the swim cap and the cavity and the second surface finish are configured to form an inner face of the swim cap.

This detailed description is provided in order to meet statutory requirements. However, this description is not intended to limit the scope of the invention described herein. Rather, the claimed subject matter may be embodied in different ways, to include different steps, different combinations of steps, different elements, and/or different combinations of elements, similar or equivalent to those described in this disclosure, and in conjunction with other present or future technologies. The examples herein are intended in all respects to be illustrative rather than restrictive. In this sense, alternative examples or implementations can become apparent to those of ordinary skill in the art to which the present subject matter pertains without departing from the scope hereof.