Variable-density soles for articles of footwear and methods for constructing said soles are provided herein. In one embodiment, a variable-density sole for a footwear article comprises a first layer comprising a first density coupled to a bottom surface of an upper of the article of footwear; and a second layer comprising a second density greater than the density of the first layer, wherein the first layer is physically coupled to the second layer forming an interface between the layers. In this way, comfort of the article of footwear may be increased while decreasing the weight of the article of footwear. Further, forming the variable-density sole includes directly molding the first layer to a strobel board, stitching the strobel board to an upper, and injecting the second layer to the upper with the strobel board and the first layer. In this way, the production of a footwear article is simplified.

Devices with internal flexibility sipes, such as slits, provide improved flexibility, improved cushioning to absorb shock and/or shear forces, and improved stability of support. Siped devices can be used in any existing product that provides or utilizes cushioning and stability. These products include human and other footwear, both soles and uppers, as well as orthotics; athletic, occupational and medical equipment and apparel; padding or cushioning, such as for equipment or tool handles, as well as furniture; balls; tires; and any other structural or support elements in a mechanical, architectural, or any other product.

A pneumatic insole includes airbags, channels, two arch-related chambers, a push-type inlet valve, an inlet channel, a check valve, a recessed portion, a push-type adjustment valve, and an outlet channel. The channels interconnect the airbags. The push-type inlet valve is located in the first arch-related chamber. The inlet channel connects the first arch-related chamber to a leading one of the airbags. The check valve is arranged between the inlet channel and the inlet airbag. The recessed portion is located between the arch-related chambers. The push-type adjustment valve is located in the recessed portion and formed with an upper face that extends lower than that of the first and second arch-related chambers. The outlet channel connects the push-type adjustment valve to another one of the airbags.

An apparatus includes a heel section, a mid-foot section, and a toe section. The heel section, the mid-foot section, and the toe section collectively have a geometric shape having a first slope of a polarity along an inner edge of the apparatus from the toe section to the heel section and a second slope of the polarity along the inner edge of the apparatus to an outer edge of the apparatus at the toe section.

An apparatus includes a heel section, a mid-foot section, and a toe section. The heel section, the mid-foot section, and the toe section collectively have a geometric shape having a first slope of a polarity along an inner edge of the apparatus from the toe section to the heel section and a second slope of the polarity along the inner edge of the apparatus to an outer edge of the apparatus at the toe section.

Designs and compositions of insoles for footwear are described herein. The insoles may be customized for a given foot. In some examples, the insole (100) includes a base comprising a variable thickness component (205), a directional stiffness component, a stability component, and a reinforcement component. The base may be a single composition that is manufactured using additive manufacturing techniques.

Footwear articles for walking are provided. In one example, a footwear article may include an upper, a midsole coupled to the upper, an outsole coupled to the midsole, and a moderation plate positioned within the midsole, the moderation plate including a toe-off section, a heel section, and a midfoot section positioned intermediate the toe-off section and the heel section, the moderation plate having a plate length that extends from the toe-off section to the heel section that is within a range of 60-95% of an outsole length of the outsole. In this way, the moderation plate may provide rigidity to the midsole while increasing cushion and enhancing propulsion. In turn, a wearer of the footwear article may smoothly walk for extended periods of time with reduced fatigue.

An article of footwear can include an upper and a sole structure. The upper defines at least a portion of a foot-receiving cavity. The sole structure is coupled to the upper and includes a midfoot support member. The midfoot support member includes a lateral flange, a medial flange, a superior deck plate, and an inferior deck plate. The superior deck plate and the inferior deck plate span from the lateral flange to the medial flange. The superior deck plate and the inferior deck plate are spaced apart in a superior/inferior direction and define an opening therebetween. The opening extends unobstructed from the lateral flange to the medial flange, and the lateral flange extends farther in a superior direction than the medial flange.

A footwear system for orthotic support comprising an insole region to which is affixed one or more detachable, repositionable receptacles that accommodate orthotic and/or foot support inserts, and optionally an additional heel receptacle. The footwear system may be usable to provide foot support in closed or open footwear.

An insole which provides cushioning and support to a user's foot subjected to a high magnitude of ground reaction forces (GRF) encountered in playing court sports, such as basketball, is herein disclosed. The insole comprises a base having a bottom side which defines recesses adapted to receive pads having particular properties. The location and materials of the various pads and pods work together to provide ground reaction force modulation to the user's foot which is highly desirable for users engaged in basketball and similar activities.