Gel "E" Skin Protection 3" Gel/Foam Wheelchair Cushion. This pressure redistributing cushion is designed to assist in the prevention, treatment, and management of pressure injuries. The viscous gel bladder is encased in a polyurethane foam shell and provides optimal pressure redistribution, support and comfort. The top cover is made of low-shear, water resistant urethane-coated nylon and the base is waterproof vinyl for durability. Size: 16" W x 16" D x 3" H. 275 lb. weight capacity.