In one aspect of the disclosure, a knitted component for use in an article of footwear may include a first layer with a multi-bed first area having a first surface and an opposite facing second surface. The knitted component may include a second layer with a second area overlapping the first area. The second area may have a first surface and an opposite facing second surface. The knitted component may include a plurality of interlayer knit stitches interlooping at least one yarn of the first layer with at least one yarn of the second layer at an interface between the second surfaces of the first and second areas. The interior surfaces of the first area and the second area may define at least part of a freely separable area between the first and second areas.

An article of apparel is disclosed that is at least partially formed from a material element having a substrate and a plurality of projections. The substrate has a first surface and an opposite second surface. The projections extend from the first surface of the substrate, and the projections each have terminal ends located opposite the substrate. The material element has a first permeability when the first surface has a convex configuration, and the material element has a second permeability when the first surface has a concave configuration, the first permeability being greater than the second permeability. The apparel may be reversible such that either the first surface or the second surface of the substrate faces outward.

A knitted component may include a knitted base portion located between a first non-planar structure and a second non-planar structure. The knitted base portion may include a first area located adjacent to the first non-planar structure, and the first area may include at least one course of a first base yarn. The knitted base portion may include a second area located adjacent to the second non-planar structure, and the second area may include at least one course of a second base yarn. The first base yarn may have a first color and the second base yarn may have a second color different from the first color.

In one aspect, the present disclosure provides an upper for an article of footwear. The upper may include a knitted component with a knit element defining a portion of at least one of an exterior surface of the upper and an opposite interior surface of the upper, the interior surface defining a void. The knitted component may further include a tongue, where the tongue extends through a throat area of the upper, and where the tongue comprises a lateral edge and a medial edge. The knitted component may further include at least one raised element extending a height above the exterior surface of the knit element and extending a length along at least one of the lateral edge and the medial edge of the tongue, where the tongue and the at least one raised element have a common yarn.

Aspects herein are directed to a sock having an integrally knit tab positioned between a collar of the sock and a heel of the sock, where the collar defines an opening for a wearer's foot. The base of the tab is integrally knit with a reciprocally knit section to reinforce the structural integrity of the tab, which may be used to assist the wearer in donning and/or doffing the sock by acting as the primary structure by which the wearer pulls the sock around the wearer's foot when donning the sock.

An article of footwear including an upper incorporating a knitted component having color-shifting properties is provided. Color-shift properties can be generated by one or more lenticular knit structures disposed across the upper of the article of footwear. The lenticular knit structures are formed of unitary knit construction with the remaining portions of the knitted component. The lenticular knit structures have portions formed with different yarns. The different yarns on the portions of the lenticular knit structures generate a visual effect that changes the color of the article of footwear depending on the viewing angle.

In one aspect of the disclosure, a knitted component for use in an article of footwear may include a first layer with a multi-bed first area having a first surface and an opposite facing second surface. The knitted component may include a second layer with a second area overlapping the first area. The second area may have a first surface and an opposite facing second surface. The knitted component may include a plurality of interlayer knit stitches interlooping at least one yarn of the first layer with at least one yarn of the second layer at an interface between the second surfaces of the first and second areas. The interior surfaces of the first area and the second area may define at least part of a freely separable area between the first and second areas.

In one aspect, the present disclosure relates to an article at least partially formed by a knitted component. In some embodiments, the article may include an upper for an article of footwear. The knitted component may include a seamless portion extending from a toe area, through a midfoot area, and to a heel area of the upper on at least one of a lateral and a medial side of the upper. A first course may at least partially form the knitted component, and the first course may extend from the heel area to the toe area of the upper.

In one aspect, the present disclosure provides an article formed of a knitted component. The article may be an upper for an article of footwear. The knitted component may have a first portion and a second portion, where the first portion of the knitted component at least partially forms a foot-receiving portion of the upper, where the second portion of the knitted component at least partially forms a strap of the upper, where the strap includes a first edge and a second edge secured to the first portion of the knitted component, and where the strap includes a third edge that extends from the first edge to the second edge.

Articles for footwear, uppers for articles of footwear, and methods for fabricating articles of footwear are provided. In one example, an upper for an article of footwear includes a knitted component. The knitted component includes a plurality of knitted cushioning structures that define a cushioning region.