Fovera Tri-Foam Seat Cushion is designed to support the bottom and thighs by optimum redistribution of seat pressure. The tailbone part of cushion is made with extra softness to prevent Coccydynia and Sciatica pain. In addition to this, it is made from three kinds of foam- memory foam, super-soft foam and high resilience foam with right softness and thickness to make this cushion.