Designed for users with a high risk of pressure ulcers. 9/16 Inch thick polymer cube pad attached to a contoured foam base Protective Incontinent film Cover. Wedged cushion measures 4 1/2 inch high on the sides and at the center pummel and 2 11/16 inch at the back. Leg troughs are 3 5/16" inches high. Includes Body Smart low shear cover.