Wise 8WD334 Series Standard Low Back Boat Seat Wise 8WD334 Series Standard Low Back Boat Seat Features Aluminum Hinges and Injection Molded Plastic Seat Frame Marine Grade High Compression Foam Padding Heavy-Duty 28 oz. Marine Grade Vinyl, Mildew Resistant & UV Treated Height: 18.75" Width: 15.75" Depth: 18.5" Seat Depth: 14"