The Coccyx Cushion with Checkerboard T-Gel Topper has a special sacral relief area that alleviates pressure on the coccyx. The top layer of Checkerboard T-Gel greatly reduces shear forces while the middle layer of T-Foam memory form evenly distributes remaining pressure. The built-in Solid Seat Insert improves pelvic stability and sitting posture by reducing slip seat sag. The Topper is ideal for high-risk patients. The cushion also features a washable, water resistant nylon cover with grey, slip-resistant bottom in solid black.