An article of footwear formed from a flat pattern to include a side seam and/or utilizing aperture alignment of multiple flat pattern pieces is disclosed. In aspects, an article of footwear, such as an upper, is formed from a flat pattern and modified into a dimensional article of footwear that includes a side closing. The side closing may comprise adjoined side edges of the flat pattern upper that are secured to each other with a securing element to maintain the dimensional article of footwear in its shape. Alignment of the parts may be provided through at least partial alignment of apertures in the flat pattern upper and apertures in a securing element and/or other flat pattern pieces, including using multi-purpose apertures, allowing streamlined processing and manufacturing of footwear.

A motorized personal transportation article is described which transports a person by wearing a pair of power-assisted motorized shoes, wherein the shoes provide an increase in a user's walking speed in a forward walking action through supplementary motion of moving or propelling means based on an intended walking speed of the user, such that when a user's intended walking speed changes or when a user intends to substantially decelerate or immobilize, the speed of the supplementary motion can be adjusted before the step is completed. The sole of each of the shoes houses at least one plate coupled to moving or propelling means such as conveyor assemblies, and the moving or propelling means are designed to neutralize forces acting to disrupt the operation of the moving or propelling means during a forward walking action or the balance and comfort of the user.

In one possible embodiment, the inventive subject matter is directed to a foot covering, comprising: a thin, flexible compartment for receiving a foot. The compartment has a forefoot section, a midfoot section, and a rearfoot section of selected rigidity. The compartment has a top surface for securing the foot and a ground-facing surface having a sole divided into at least two portions comprising (1) a forefoot portion and midfoot portion and/or (2) a midfoot portion and a rearfoot portion. At least one sole portion comprises a midfoot portion disposed between a forefoot portion and/or a rearfoot portion. In the foot covering, each pair of sole portions is divided along a flexural line running generally transverse to the longitudinal axis of the foot. The sole portions and flexural line(s), in combination with the flexible compartment, have a material construction and are arranged so as to facilitate the close conforming of the foot covering to the foot of an intended user through plantar flexion to dorsiflexion.

A plurality of orthotic systems are provided. One bi-layer system is constructed from a single sheet of fabric that is molded into two layers. One tri-layer system includes a base layer; a mid-layer; and an upper layer. The upper layer is joined to the mid-layer and the mid-layer is joined to the base layer. The coupling of the base layer, the mid-layer and the upper layer create a rear spring section, a mid-spring section and a front spring section in which the upper layer is suspended over the mid-layer and the heel portion is suspended on the proximal heel end of the base layer.

The invention relates to articles of footwear, and portions thereof, including convex and/or concave elements thereon, and related systems and methods for designing and manufacturing same. An example article of footwear including a midsole having a medial side, a lateral side, a forefoot region, a midfoot region, and a heel region, the midsole including a sidewall, wherein the sidewall includes a first wall portion having a plurality of convex structures extending out from the sidewall and a second wall portion having a plurality of concave structures extending into the sidewall.

An improved article of footwear includes a sole structure and an upper. The upper is coupled to the sole structure and is configured to receive at least a portion of a human foot. The upper further includes a toebox, a medial quarter, a lateral quarter, a heel cup. The upper also includes a three dimensional auxetic structure at least partially formed within the medial quarter, lateral quarter, and heel cup of the upper. The three dimensional auxetic structure defines a primary expansion direction, a secondary expansion direction, and a tertiary expansion direction. The secondary expansion direction is transverse to the primary expansion direction. The tertiary expansion direction is normal to the plane defined by the primary expansion direction and the secondary expansion direction. Furthermore, the upper of the article of footwear is constructed via a thermoforming process.

Described are articles of wear including with a material with color changing properties. The material includes at least one elastic portion having an unstretched colored appearance and a stretched colored appearance. The material also includes at least one fixed portion having the stretched colored appearance regardless of a magnitude of an external force applied to the at least one fixed portion.

A collapsible shoe heel is provided. The collapsible shoe heel features a support member having a first end and second end, a substantially u-shaped lifting member having a first end and a second end, an angle, formed by the support member and the lifting member, which has a natural position, a first hinge rotatably connecting the first end of the support member and the first end of the lifting member, and a second hinge rotatably connecting the second end of the support member and the second end of the lifting member. The first hinge and second are configured to retain the natural position of the angle.

In one possible embodiment, the inventive subject matter is directed to a foot covering, comprising: a thin, flexible compartment for receiving a foot. The compartment has a forefoot section, a midfoot section, and a rearfoot section of selected rigidity. The compartment has a top surface for securing the foot and a ground-facing surface having a sole divided into at least two portions comprising (1) a forefoot portion and midfoot portion and/or (2) a midfoot portion and a rearfoot portion. At least one sole portion comprises a midfoot portion disposed between a forefoot portion and/or a rearfoot portion. In the foot covering, each pair of sole portions is divided along a flexural line running generally transverse to the longitudinal axis of the foot. The sole portions and flexural line(s), in combination with the flexible compartment, have a material construction and are arranged so as to facilitate the close conforming of the foot covering to the foot of an intended user through plantar flexion to dorsiflexion.