Uncovered shells are composed of thin, high density 85 Durometer EVA.
The deep heel seat (3mm) and anatomical arch (7mm) provide control while still being thin enough to fit into most shoes. The shell can also be trimmed or modified to fit into the desired footwear. Shells can be modified using several techniques including heating in an oven, heating and molding to the patient, or by adding posting and modifying components.