The Convo-Gel cushion from Drive and Mason Medical is specifically designed to redistribute pressure to assist in the prevention of pressure ulcers while providing patient comfort by incorporating high-density convoluted foam over and under a dual-chamber gel bladder. The fluid-resistant, low-shear stretch cover includes tie straps to secure to wheelchair. Designed to redistribute pressure while providing patient comfort|Cushion incorporates high-density convoluted foam over and under a dual-chamber gel bladder|Fluid-resistant, low-shear stretch cover with tie straps to secure to wheelchair|Waterproof vinyl bottom