Vionic just got this patent: “A composite orthotic device for use with footwear includes a resiliently deformable base part and a resiliently deformable upper part, forming a plurality of foot supporting portions of differing durometer adapted to guide the wearer’s foot along a Center of Pressure path from heel strike to toe-off to follow a biomechanically corrected gait path.” “The… Foot Orthotic Patent: “of differing durometer adapted to guide the foot”
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Foot Orthotic Patent: "of differing durometer adapted to guide the foot"