Skil-Care Gel-Foam Vinyl CushionBackrest Seat Combo: This is a high end gel foam cushion that provides enhanced comfort. pressure relief and redistribution. The gel surface cools the area to minimize vulnerability to pressure sores and reduces perspiration. It has four separate chambers that stabilizes the gel and is ideal for persons who have difficulty maintaining upper trunk control. The pressure relieving foam base adds comfort and prevents bottoming out. The cushion is covered