An article of footwear includes an upper and a sole assembly. The sole assembly includes a unitary, open-celled structure. Specifically, the sole assembly includes a lattice structure having an interconnected network of struts and nodes that cooperate to define voids. The struts and nodes are configured to generate predetermined support and flexure properties within the network. The lattice may be configured as a conformal lattice, being contoured to receive accessories or complementary support structures. The sole assembly may further include an insert formed of compression material (e.g., foam). In operation, the lattice and foam insert cooperate to provide stability and cushioning to the article of footwear.

A sole structure for an article of footwear comprises a sole plate that includes a foot-facing surface with a forefoot portion, and a ground-facing surface opposite from the foot-receiving surface. A tension member is operatively secured to the ground-facing surface and has a portion configured to move relative to the sole plate during dorsiflexion of the sole structure in a first portion of a flexion range, and interfere with the sole plate during dorsiflexion of the sole structure in a second portion of the flexion range greater than the first portion altering the rate of the resultant torque.

A sole for an article of footwear includes a base having an outer edge defining a perimeter, the base having a forefoot portion, a midfoot portion and a heel portion; and a plurality of resilient projections extending from the base, wherein the plurality of projections includes a plurality of projections extending non-orthogonally from the base about the perimeter of the base and a plurality of projections extending substantially orthogonally from the base within the non-orthogonal projections.

A footwear comprises a sole constituted by at least an outer sole and a inner sole, it is of the type without heel, capable of support the foot substantially parallel to the ground or with the ground contacting surface of the heel raised of not more than 20 mm compared to the metatarsal ground contacting surface, and has a configuration such as to form a bending at the metatarsal-phalangeal joint, with the phalangeal portion elastically deformable downwards.

A footwear sole structure having a fluid-filled chamber including a tensile member is provided. The fluid-filled chamber includes a first barrier sheet, a second barrier sheet and the tensile member. The first barrier sheet is formed from a first thermoplastic material. The second barrier sheet is attached to the first barrier sheet and is formed from a second thermoplastic material. The first barrier sheet and the second barrier sheet cooperate to define an internal cavity. The tensile member is disposed within the internal cavity and is formed from a third thermoplastic material. A first weld attaches the first barrier sheet, the second barrier sheet, and the tensile member together by melding the first thermoplastic material of the first barrier sheet, the second thermoplastic material of second barrier sheet, and the third thermoplastic material of the tensile member.

Sandals with biomechanical foot support, robust usability and cost-effectiveness are disclosed. The footwear may comprise a biomechanical sole and a Y-shaped rubber strap anchored to the sole. The sole has a top surface including a raised contour on the medial side of the sandal, and a low profile heel cup. The raised contour on the medial side and the heel cup match the natural anatomic shape of the foot, and thus provides a biomechanical foot support. The bottom surface of the sole may be a roughed surface to provide necessary traction and friction when a wearer/user walks. The bottom surface further comprises a plurality of grooves to allow water to be expelled and increase traction.

An article of footwear has a tubular structure that may conform to various anatomical features of a foot. The tubular structure has a tunnel, and a tensile strand runs through the tunnel. Applying tension along the tensile strand may cause the tubular structure to conform more closely to one or more anatomical features. The geometry, or path, of the tubular structure on the article may be customized.

A material that includes at least one layer made of an auxetic structure and articles of footwear having soles comprising the materials. When the material is under tension, it expands in both the direction under tension and in the directional orthogonal to the direction under tension. The articles of footwear have soles that have at least one layer made of a material that has a pattern of apertures to provide the auxetic structure. The apertures are surrounded by sole portions that can rotate or pivot to change the size of the apertures.

An article of footwear includes a midsole, an upper disposed above the midsole, and an outsole disposed below the midsole. The midsole includes a unitary lattice structure having an upper side and a lower side, wherein the upper side is a user-facing side and the lower side is a ground-facing side. The midsole further includes an upper rim integrally formed with the unitary lattice structure. The upper rim extends around an upper perimeter defined on the upper side of the lattice structure.

A shoe includes a first plate and a second plate that are located in a portion of the shoe between an upper and an outsole of the shoe, and a nest formed as a bag filled with one or more gasses located between the first plate and the second plate. The shoe may further include one or more springs located in cavities in the gas filled nest for biasing the first plate and the second plate apart from each other. Pods may be located within the openings in the center of the springs, and the pods may be filled with one or more gasses. The pods may protrude from a bottom or a top surface of the nest. Spring sandwiches including one or more springs positioned between plates may be constructed and placed in various portions of a shoe. The shoe may also include piping with lights.