A non-water-activatable cast has one or more layers of sheet-like material which create a combined flexibility, stiffness, or rigidity so that the cast may be manually positioned in substantial contact with a lower extremity to be received within the cast. As such, the cast is not only readily deployable by a patient, but has predetermined flexibility located and selected to control ankle movement within a therapeutically appropriate range, whether used by itself or in association with a related orthosis, such as a CAM walker. In certain applications, the cast likewise offloads or otherwise redistributes force by virtue of the rigidity of the plantar impact surface on such cast and the rigidity of other cast portions.
