Abstract: Interior members for foot-receiving devices, such as bootie elements for articles of footwear, include a material element at least partially defining a foot-receiving chamber. This material element may include, in some examples, a heel-surrounding portion, a lateral side portion, a medial side portion, and a seamless plantar portion in a continuous, one-piece arrangement. Additionally or alternatively, in some examples, the material element may include a heel-surrounding portion, a lateral side portion, a medial side portion, a plantar surface, and a double layer of the material element at least along an Achilles area portion. Additional aspects relate to material blanks for forming such interior members as well as to foot-receiving devices, such as athletic footwear, including such interior members.

Abstract: A method of forming an upper for an article of footwear includes the steps of providing an exterior layer of an upper of an article of footwear having a layer of adhesive secured to an interior surface thereof, positioning an interior layer of the upper in contact with the interior surface of the exterior layer, applying heat and pressure to laminate the interior layer and exterior layer together, and cutting the laminated interior layer and exterior layer to a desired final form.

Abstract: An article of footwear includes an upper and a sole assembly. The sole assembly includes a central member of a first material having a first density with its medial and lateral sides having surface irregularities. A medial member extends along a medial side of the central member and beneath a portion of the central member, and has a surface irregularity configured to mate and interlock with a surface irregularity of the central member. The medial member is formed of a second material having a density greater than the first density. A lateral member extends along a lateral side of the central member and beneath a portion of the central member, and has a surface irregularity configured to mate and interlock with a surface irregularity of the central member. The lateral member is formed of a third material having a density greater than the first density.

Abstract: An article of footwear includes an upper and a sole assembly including a midsole. A cavity is formed in the midsole and has a cavity wall, with a groove formed in the cavity wall. A membrane is received in the groove and extends across the cavity. An upper member is secured to an upper surface of the midsole, with a portion of the upper member extending across the cavity.

Abstract: A system for custom fitting athletic shoes to an individual wearer includes a foot measurement device, an adjustable footform and an infrared activation chamber. Shoes of a single width for each length size have at least a portion of the upper made of heat malleable material to be custom fitted for width. Foot measurement data is used to calculate length size, width size and a number of custom adjustment factors. After the length size is calculated, the appropriately sized shoe and last are assembled together and subject to infrared radiation until the heat malleable material becomes plastic. Adjustments are then made to the last in accordance with the adjustment factors to provide custom width sizing. After further heat treatment to set the shoe upper and cooling, the shoe is complete. In this manner, if used in a retail setting, shoes are custom fitted to the wearer in a matter of minutes.

Abstract: A method of forming an upper for an article of footwear includes the steps of providing an exterior layer of an upper of an article of footwear having a layer of adhesive secured to an interior surface thereof, positioning an interior layer of the upper in contact with the interior surface of the exterior layer, applying heat and pressure to laminate the interior layer and exterior layer together, and cutting the laminated interior layer and exterior layer to a desired final form.

Abstract: Footwear including removable and replaceable outsole members may include: (a) an upper member; (b) a midsole member, having an exterior surface not designed for performance use in direct contact with the ground, fixedly engaged with the upper member; and (c) an outsole member designed for performance use in contact with the ground removably attached over at least a major portion of the midsole member. The outsole member may attach to the midsole member and/or upper member in a variety of different ways. In use, the wearer may select a specific set of outsole members to use at a given time depending, for example, on the type of play surface, temperature, and/or other conditions. Worn outsole members may be replaced without the expense involved in also replacing the remainder of the footwear.

Abstract: An article of footwear includes a sole assembly and an upper secured to the sole assembly. A heel counter is secured to the sole assembly. The heel counter includes an inner portion and an outer portion secured to the inner portion. A portion of the upper is captured between the inner and outer portions of the heel counter.

Abstract: A sole component for footwear combining the desirable response characteristics of a fluid filled chamber and an elastomeric material is disclosed. The chamber can be formed as a single bladder chamber in contact with an elastomeric midsole or as a single chamber by a sealing a void in elastomeric material. Alternately, an insert having the shape of the bladder, and potentially formed from foam, may be positioned within the chamber. The interface between the chamber and elastomeric material is sloped and gradual so that the shape of the chamber and its placement in a midsole determine the combination of response characteristics in the sole component. The chamber has a relatively simple shape with one axis of symmetry with a rounded portion and a narrow portion.

Abstract: An article of footwear is constructed to dynamically provide width adjustment by cooperative expansion and contraction of a longitudinal split midsole with an expansion element integrated with an outsole that allows the midsole to expand from a narrow width to a wider width. The upper of the shoe has a corresponding section that can expand to a similar degree as the midsole and outsole to enable the volume of the upper to increase proportionally to the width of the sole.

Abstract: There is disclosed an internal sizing apparatus comprising a pneumatically activated probe that moves axially within a shoe and non-destructively measures the interior dimensions of the shoe. A linear pneumatic actuator is mounted between a heel piece and a probe. A linear potentiometer is mounted above the actuator and also connects to the probe. The apparatus is inserted into a shoe with the heel piece seated against the interior heel portion of the shoe. A computer system controlling the actuator extends the probe linearly into the shoe until the probe contacts the toe portion of the shoe. The potentiometer then measures the linear distance traveled by the probe and thus determines the internal linear dimension of the shoe. Depending on the type of probe, three-dimensional internal measurements of the shoe can also be quantified.