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

A support surface for improving alignment of a foot relative to subtalar neutral position, the foot having a medial side, a lateral side, a sustentaculum tali, a lateral calcaneus, a heel at a hindfoot, a midfoot, and a forefoot, the support surface being at least a portion of an insole, a midsole, an outsole, or an upper of footwear, the support surface comprising:

• a support surface having at least a hindfoot section and a midfoot section configured to support and control the hindfoot and the midfoot of the foot, respectively, the support surface having a first end proximate the heel of the foot and an opposing second end proximate the forefoot of the foot, a longitudinal axis of the support surface extending from the first end to the opposing second end and extending through a lateral midpoint of the support surface, the support surface being configured to receive at least a portion of the hindfoot and the midfoot of the foot;
• and
• a sidewall extending upwardly from a central portion of the support surface, a medial portion of the sidewall being configured to support the medial side of the foot, a lateral portion of the sidewall being configured to support the lateral side of the foot,
• wherein a highest point of the lateral portion of the sidewall, as measured along a straight line extending perpendicularly to the longitudinal axis, is greater than a highest point of the medial portion of the sidewall, as measured along the straight line extending perpendicularly to the longitudinal axis, and
• wherein the support surface is configured to align and control the hindfoot into a sub-talar neutral alignment position and reduce range of motion about the longitudinal axis of the foot.