Abstract: A one-piece molded orthotic insert having a shape for controlling and directing the motions of the foot. The insert has a unitary body that is formed of a rigid, resiliently flexible, substantially noncompressible material, so that the insert will flex with the shoe but will not compress or deform, so that a correct shape is maintained through the gait cycle. The insert includes a raised arch portion that is supported by a plurality of underlying, vertical ribs. The ribs are spaced apart and free from connection with one another, so that the lower edges of the ribs are able to spread as the insert flexes along its lengthwise axis, so that the insert flexes generally uniformly when walking and without distortion of its shape. The layer of material overlying the ribs has a thickness generally similar to that in the reset of the body, and the ribs also have a generally similar thickness, facilitating manufacture by injection molding.

Abstract: An insole assembly for a shoe or other article of footwear. The assembly includes a soft, cushioning foam blank having an upper surface which is contoured to engage the plantar surface of a foot, and a thin, substantially rigid, resiliently flexible cap which is mounted to the bottom of the blank so as to extend around the heel end and forwardly along the medial and lateral sides thereof. The rigid cap includes an upstanding wall which engages and buttresses the perimeter of the foam blank, and a series of medial and lateral flanges which extend across and support the bottom of the blank. The flanges are configured to cooperate with the foam blank to define zones of support in specific areas, with the maximum support and rigidity being provided for the rearfoot and midfoot areas of the foot.