Abstract: An outsole for an article of footwear. The outsole includes an outsole body having a ground contact surface and defining grooves having a sinusoidal path along the ground contact surface. The grooves are arranged to provide an edge density of between about 40 mm/cm2 and about 200 mm/cm2 and a surface contact ratio of between about 40% and about 95%.

Abstract: A footwear upper that includes a first layer and a second layer disposed on the first layer. The second layer includes a lattice defining a rhombille tiling pattern of figures.

Abstract: A footwear upper including a first layer and a second layer disposed on the first layer exteriorly of the first layer. The second layer defines grooves in a rhombille tiling pattern.

Abstract: An article of footwear includes a footwear upper and a sole assembly secured to the footwear upper. The sole assembly has a heelward portion and a toeward portion, and includes a deck assembly disposed substantially in the heelward portion of the sole assembly. The deck assembly includes an upper deck portion, a lower deck portion spaced from the upper deck portion, and right and left supports attached to respective right and left portions of the upper and lower deck portions substantially near respective right and left lateral edges of the upper and lower deck portions. The deck assembly defines a cavity between the upper and lower decks. The deck assembly directs translation of ground contact forces incurred by the heelward portion of the sole assembly at least partially laterally outwardly.

Abstract: A footwear upper including a first layer and a second layer disposed on the first layer exteriorly of the first layer. The second layer defines grooves in a rhombille tiling pattern.

Abstract: An outsole for an article of footwear. The outsole includes an outsole body having a ground contact surface and defining grooves having a sinusoidal path along the ground contact surface. The grooves are arranged to provide an edge density of between about 40 mm/cm2 and about 200 mm/cm2 and a surface contact ratio of between about 40% and about 95%.

Abstract: A footwear upper that includes a first layer and a second layer disposed on the first layer. The second layer includes a lattice defining a rhombille tiling pattern of figures.

Abstract: An article of footwear includes a footwear upper and a sole assembly secured to the footwear upper. The sole assembly has a heelward portion and a toeward portion, and includes a deck assembly disposed substantially in the heelward portion of the sole assembly. The deck assembly includes an upper deck portion, a lower deck portion spaced from the upper deck portion, and right and left supports attached to respective right and left portions of the upper and lower deck portions substantially near respective right and left lateral edges of the upper and lower deck portions. The deck assembly defines a cavity between the upper and lower decks. The deck assembly directs translation of ground contact forces incurred by the heelward portion of the sole assembly at least partially laterally outwardly.

Abstract: In one embodiment a gaitor interface may be used to connect a gaitor to many different types of footwear. The gaitor interface provides a removable attachment between the gaitor and the shoe. One part of the gaitor interface comprises a track that can be mounted along the exterior of the shoe. The track includes a pair of elongated arms that define an interior flex track. Another part of the gaitor interface comprises a connector for attaching to the track. The connector has a bead portion that can be slid into the flex track. The interlock between the bead portion and the flex track provides a releasably secure connection between the gaitor and the shoe. In another embodiment, a convertible shoe having a removable shoe collar is provided. The removable collar may be reversible and may have different linings or covering for the inner and outer surfaces.