The Sit-Straight Cushion with Coccyx relief has a top layer of soft T-Foam memory foam for pressure redistribution. In addition, the coccygeal area is cut out for maximal pressure relief at the sensitive coccyx/sacral region. The T-Foam section is placed on top a solid seat insert base that is designed to overcome the sagging wheelchair seat. The cushion is covered with a breathable, waterproof cover with water-resistant seams. Available in two sizes.