Ergonomic Design: The pontoon boat seat is padded with extra-thick,high-density sponge, offering excellent resilience and perfectly conforming to body curves.The curved ergonomic back and wide seat design provide comfortable support,reducing fatigue from prolonged sitting Flip-up Bolster Design: The flip-up bolster design offers additional seat height and sturdy solid support when standing. It enhances user visibility, safety, and comfort Strong Construction: The captain boat seat features strong aluminum alloy hinges, making it robust and rust-resistant.Base made of high-impact plastic injection-molded frame with strong load capacity up to 300 lbs Weather-Resistant & Waterproof: Made with marine-grade vinyl, tightly stitched to ensure waterproof and UV resistant, and reliable to withstand long-term rigors of a marine environment,making it the great choice for pontoon boat seat and boat captain chair Easy Installation: The captain bucket seat features a standard 5" X 5" and 5" X 12" mounting bolt pattern. With the included hardware, installation is quick and hassle-free (The base swivel joint is not included) Our captain bucket seat measures 22" x 27.5" x 24.5" (L x W x H) and it can be installed on the boat platform for seating, on the boat swivel or pedestal for captains. It is suitable for universal 12" x 5" of 5" x 5" mounting bolt patterns. Featuring a comfortable flip-up bolster, our boat seat caters to various seating preferences and standing positions with ease. Furthermore, with its thick padded seat and ergonomically curved backrest, the chair fits your body contour for ultimate comfort and relaxation. Other than that, it is covered by waterproof PVC leather, which not only provides a comfy and luxurious feel but also ensures longevity and easy maintenance. Whether you are on a fishing boat, a sightseeing vessel, or a speedboat, this versatile seat caters to various boating activities! Features: Designed with a flip-up bolster, provide sturdy support for standing positions The heavy-duty aluminum hinges allow for smooth movement The PVC surface is ultraviolet-resistant, wear-resistant, waterproof, and easy to clean The robust HDPE frame ensures a stable and secure seating option The thick upholstered cushions provide a soft and cozy seating experience The ergonomic bucket seat design offers exceptional wrap-around support The curved armrests offer ample support, prevent muscle fatigue Equipped with 4 bolts and washers for a quick and hassle-free installation Suitable for 12" x 5" of 5" x 5" bolt pattern swivel or pedestals (not included) Provide strong support, ensure strong loading capacity of 330 lbs Specifications: Color: Blue+White Material: PVC, Sponge, HDPE Overall Dimensions: 22" x 27.5" x 24.5"/56 x 70 x 62 cm (L x W x H) Seat Size: 13.5" x 16"/34 x 40 cm (L x W) Back Height: 21"/53 cm Weight Capacity: 330 lbs/150 kg Net Weight: 24.5 lbs/11 kg Package Includes: 1 x Captain Boat Seat 4 x Bolt 1 x User’s Manual