Curve® Cushion with Comfort-Tek Cover Fluid-proof, wipe-clean Comfort-Tek Cover provides infection control and an incontinence barrier. Its Polyurethane material has a smooth, soft top layer with high-stretch polyester backing. Mild anti-thrust shelf promotes postural stability and helps prevent forward migration, while a medial thigh separator improves postural alignment. High-density molded foam increases cushion's surface area, reducing potential peak pressure areas. Non-skid flat bottom features hook-and-loop attachment for stability and reflective piping on cushion's sides can be seen from up to 500' away in low-light conditions. Black.