Coccyx Cushion Foam 18 x16 x2 Navy Cushions Gel If you need more MSHQ 1594XL If you need more * Adjustable arch aircell for individualized support and comfort * Anatomically designed shells for secure ankle stability * Rear entry design and simple two strap application promote ease of use and compliance * Navy * 18 W x 16 D x 2 * Custom sizes available * Optional solid seat inserts available ($8 75 Up Charge) * Relieves pressure at the sacral area while offering patient s comfort and even distribution of weight throughout the cushion * Medium density fire retardant foam is covered in either a poly cotton in your choice of black navy or gray medical grade vinyl