• High-Quality and Durable Materials: UV-resistant neoprene 600D polyester outer layer, EVA foam PE board filling, providing super cushioning and waterproof. The non-slip surface enhances safety, and the ventilation system keeps you dry
• Ultimate Comfort and Shockproof: Extra-thick molded foam (seat and backrest) provides sofa-like comfort, effective shockproof, back and hip support, and long-term exercise without fatigue
• Ergonomic Support Storage: The 18-inch high ergonomic backrest fits perfectly, provides strong back support, and avoids back pain. Comes with a removable waterproof zipper storage bag
• Stable and Easy to Install: 4 adjustable mounting straps with rust-proof marine-grade brass clips, easy to install, firmly fixed, suitable for most sit-on kayaks, canoes, inflatable boats and some SUPs
• Universal Non-Slip Size: backrest (18"x20.4")/seat cushion (12.2"x15.3"); widened connection strap design is non-slip. Suitable for a variety of kayak types, enhancing the fun of water