Patent ID: 7758528

Claim:
A corrective device wearable on a portion of a human below a knee of the human including at least a portion of the human's foot and to be positioned inside of a footwear while on the portion of the human, the portion of the human having at least a misalignment, the corrective device comprising: an inner shell having a first rigidity sufficient to prevent abduction of the foot when the foot pronates, the inner shell shaped to accommodate receiving the portion of the human into the inner shell to supportingly couple with the portion of the human; and an outer shell having a second rigidity, the second rigidity being at least as great as the first rigidity, the outer shell shaped to accommodate receiving the inner shell into the outer shell and to supportingly couple with the inner shell to provide in combination with the inner shell a cumulative support greater than provided by either the inner shell or the outer shell by itself and to accommodate positioning into the footwear for coupling with the footwear, the inner shell and the outer shell being sized and shaped such that when the inner shell is coupled with the portion of the human and the outer shell is coupled with the inner shell and positioned in the footwear, at least a sufficient portion of a pressure is distributed by the second rigidity of the outer shell and the first rigidity of the inner shell over a desired area of the portion of the human to provide an amount of correction to the misalignment of the portion of the human, whereby the human can wear the inner shell inside of the outer shell inside of the footwear in comfort while the portion of the pressure is being applied to facilitate correction of the misalignment.