Wise Promotional Low Back Boat Seat - These boat seats have been constructed with state-of-the-art high-impact plastic frames to allow for long use of these premium boat seats. They are backed by a 6 year warranty on the frame and a 3 year warranty on the upholstery. Heavy duty 28oz marine grade vinyl Compression foam padding State-of-the-art high-impact plastic frames Mildew resistant and UV treated 6 year warranty on frame 3 year warranty of upholstery Height: 18.75in Width: 15.75in Depth: 18.5in Seat Depth: 14in