The Bari-Foam cushion features temperature-sensitive visco-elastic foam that conforms to your patient to decrease pressure and increase comfort. This cushion's three-part construction prevents bottoming-out, and the safety strap and anti-slip bottom keep the cushion securely in place. The top layer of visco-elastic foam reduces pressure, the middle layer of high-density foam adds comfort and cushioning, and a firm foundation controls sling-seat hammocking. The fluid-proof, wipe clean Low-Shear II cover prevents skin-damaging friction.