Wise Mid Back Boat Seat - Mildew resistant and UV treated should be at the top of your list of things to check when buying a boat seat. This Mid Back Boat Seat by The Wise Company uses compression foam padding that is protected by heavy-duty 28oz marine grade vinyl to give a high end boat seat to boaters and anglers at an affordable price. No-pinch aluminum hingesMildew resistant & UV treatedHeavy-duty 28oz marine grade vinylCompression foam paddingState-of-the-art high-impact plastic frames6 year warranty on frame3 year warranty on upholsteryHeight: 21.25inWidth: 17inDepth: 21inSeat depth: 14in