A sock and/or outer footwear having one or more portions with reduced frictional characteristics. One or more of the heel portion, the arch portion and the ball portion of the sock and/or interior of the outer footwear is fabricated with one or more fibers having the reduced frictional characteristics. The reduced frictional characteristics are established with the one or more low-friction fibers that are integrated with fibers having additional complementary characteristics of thermal regulation and moisture management. The provision of reduced frictional characteristics in one or more of the heel, arch and ball facilitates insertion of a foot into footwear.

A sock and/or outer footwear having one or more portions with reduced frictional characteristics. One or more of the heel portion, the arch portion and the ball portion of the sock and/or interior of the outer footwear is fabricated with one or more fibers having the reduced frictional characteristics. The reduced frictional characteristics are established with the one or more low-friction fibers that are integrated with fibers having additional complementary characteristics of thermal regulation and moisture management. The provision of reduced frictional characteristics in one or more of the heel, arch and ball facilitates insertion of a foot into footwear.

An article of footwear flat pattern upper (126, 300, 302) portion (216) is provided. The upper portion (302) has a midline reference line (415, 416) extending between the toe end apex (316) and a midpoint on the heel end (314). The upper portion (302) also is comprised of an origin (344) aperture that is located within 10 millimeters of the midline reference line (415, 416) between the toe end (306) and the heel end (314) of the upper portion (302). The upper portion (302) is also formed with an overlay (500) that is coupled with the upper portion (302) between the toe end (306) and the heel end (314) and between the medial side (315) and the lateral side (317). The overlay (500) has an alignment aperture (345) that is aligned with the origin (344) aperture.

An article of footwear flat pattern upper (126, 300, 302) portion (216) is provided. The upper portion (302) has a midline reference line (415, 416) extending between the toe end apex (316) and a midpoint on the heel end (314). The upper portion (302) also is comprised of an origin (344) aperture that is located within 10 millimeters of the midline reference line (415, 416) between the toe end (306) and the heel end (314) of the upper portion (302). The upper portion (302) is also formed with an overlay (500) that is coupled with the upper portion (302) between the toe end (306) and the heel end (314) and between the medial side (315) and the lateral side (317). The overlay (500) has an alignment aperture (345) that is aligned with the origin (344) aperture.

A method of manufacturing a collagen yarn includes providing collagen fiber. The collagen fiber is spun into a yarn and tanned subsequent to the spinning of the yarn.

A method of manufacturing a collagen yarn includes providing collagen fiber. The collagen fiber is spun into a yarn and tanned subsequent to the spinning of the yarn.

A wearable article such as an article of athletic gear (e.g., a skate, an article of protective athletic equipment such as a helmet, etc.) wearable by a user and comprising an expandable user-engaging structure that is configured to be expanded (e.g., by heat or another stimulus) after manufacturing of the wearable article to conform it to the user or otherwise improve a fit of the wearable article on the user.

A wearable article such as an article of athletic gear (e.g., a skate, an article of protective athletic equipment such as a helmet, etc.) wearable by a user and comprising an expandable user-engaging structure that is configured to be expanded (e.g., by heat or another stimulus) after manufacturing of the wearable article to conform it to the user or otherwise improve a fit of the wearable article on the user.

An article of footwear flat pattern with an integrated collar liner is provided. The flat pattern has a flat upper with a top surface forming an exterior of a dimensionally formed article of footwear and a bottom surface facing an internal cavity of the dimensionally formed article of footwear. The flat pattern also includes a collar liner that is coupled with the flat upper at an ankle opening. The collar liner has an interior surface and an opposite exterior surface. The exterior surface forms an exposed surface of the internal cavity of the dimensionally formed article and the interior surface faces the flat upper bottom surface within the internal cavity of the dimensionally formed article. However, the collar liner external surface faces the flat upper top surface at an ankle opening coupling location.

An article of footwear flat pattern with an integrated collar liner is provided. The flat pattern has a flat upper with a top surface forming an exterior of a dimensionally formed article of footwear and a bottom surface facing an internal cavity of the dimensionally formed article of footwear. The flat pattern also includes a collar liner that is coupled with the flat upper at an ankle opening. The collar liner has an interior surface and an opposite exterior surface. The exterior surface forms an exposed surface of the internal cavity of the dimensionally formed article and the interior surface faces the flat upper bottom surface within the internal cavity of the dimensionally formed article. However, the collar liner external surface faces the flat upper top surface at an ankle opening coupling location.