No Fatigue After Long Sitting: High-elastic thick foam in the backrest and seat ensures soft, long-lasting comfort. The bucket boat seat relieves pressure on your back, spine, and hips, making long sessions on the water a breeze. Flip-Up Seat Cushion: The seat cushion can be easily flipped up for storage, taking up minimal space. When in use, the captain boat seat unfolds quickly to provide a wide and comfortable seat, reducing leg pressure. Ergonomic Design: The high backrest and bucket seat design provide a strong sense of support. The ergonomic curved shape greatly fits your body and spine, ensuring comfort while driving or sitting for extended periods. 5.3" x 5.3" Bolt Hole Installation: The folding boat seat features a 5" bolt hole spacing. We provide corrosion-resistant screws and washers, making it easy to securely attach the seat to most boat swivels or bases. Please note, the boat base and swivel are not included. Waterproof Seat: The boat seat surface is made of PVC leather, providing waterproof, wear-resistant, and UV-resistant features. Expertly stitched to avoid tears, it’s designed to withstand marine and outdoor environments, ensuring durability.