A corrective device to be worn on a human foot having a misalignment and positioned inside of footwear. The device having an inner shell having a first material composition and flexibility, and shaped to accommodate receiving therein and supportingly couple with the foot, and an outer shell having a second material composition and flexibility, the second material composition and flexibility being substantially the same as the first flexibility, the outer shell shaped to accommodate receiving therein the inner shell, supportingly couple with the inner shell and allow positioning into the footwear. At least a sufficient portion of a pressure is distributed by the outer shell and the inner shell over a desired area of the foot to provide an amount of correction to the misalignment while allowing the human to wear the inner shell inside of the outer shell inside of the footwear.