Support surface configured to improve alignment of a foot, and method of forming same

Abstract

A support surface for improving alignment of a foot relative to subtalar neutral position can be at least a portion of an insole, a midsole, an outsole, or an upper of footwear. A sidewall can extend upwardly from a central portion of the support surface. A medial portion of the sidewall can support the medial side of the foot. A lateral portion of the sidewall can be configured to support the lateral side of the foot. A highest point of the lateral portion of the sidewall, as measured along a straight line extending perpendicularly to the longitudinal axis, can be greater than a highest point of the medial portion of the sidewall, as measured along a straight line extending perpendicularly to the longitudinal axis. The support surface can be configured to align the foot more closely to a subtalar neutral alignment and reduce range of motion about the longitudinal axis.

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