The Protekt Ultra Cushion features two layers of high resilient foam for increased comfort and decreased likelihood of pressure sores. The gel infused top layer of visco memory foam provides pressure redistribution and rapid heat dissipation. The dual compartment gel bladder eliminates gel migration while soft foam allows immersion of the pelvis for comfort and stability. The stretch nylon cover is comfortable, breathable and fluid resistant. Weight Capacity: 275 lbs. Size: 18" x 18" x 3".