The Wise Boat Seat is America"s most popular mid back boat seat. The indestructible, injection molded, plastic frame on the Wise Seat is completely weatherproof. The vinyl boat seat also features aluminum hinges that provide additional strength. Made with high compression, high density polyurethane foam padding that is covered with marine grade 28-ounce vinyl, the Wise Boat Seat also has mildew and UV inhibitors that keep it looking brand new. The vinyl cover is sewn onto the Wise Seat with Dacron polyester thread, so it will stay fully intact for years to come. Stainless steel staples also help secure the upholstery. The Wise Boat Seat measures 16.75" wide x 21.5" high and it has a 20.5" diameter. This stylish grey and navy seat also comes with mounting bolts for easy installation. Wise Boat Seat: * Indestructible, injection molded, plastic frame * Weatherproof to the elements * Features strong aluminum hinges * High compression, high density, polyurethane foam padding * Covered with marine grade 28 oz vinyl * Vinyl features mildew and UV inhibitors * Vinyl is sewn with Dacron polyester thread * Stainless Steel staples secures upholstery * T-Nut construction to mount on any 4-bolt BIA standard pedestal system * Mounting bolts included * 6 year frame and 3 year upholstery warranty * Dimensions: 21.5"H x 16.75"W x 20.5"D * Color: Grey/Navy