The Essence SPP features lateral and pre-ischial shelf contours; a high-density, specially formulated foam base; and coccyx and sacral relief. The Coolcore cover is standard on the Essence SPP cushion with a four-way-stretch poly liner being optional. The Essence SPP comes with optional contour wedges for better positioning in the pelvic region in .5″ and 1.5″ heights. The Essence SPP cushion is coded E2607 and E2608 and is currently available in the following sizes: 16×16″, 16×18″, 18×16″, 18×18″, 18×20″, 20×18″ and 20×20″. Plus, 22″ widths will be launching soon in depths of 20″, 22″ and 24″.