Features: Make with tear resistant foam and Enduring Oxfords cloth that resists sun fading and water damage, and also prevents punctures. Contoured massage point can relieve muscle pressure. Light weight, shock absorption and comfortable. The backrest Seats allows for paddlers positioning whether you're fishing, navigating a river, or leaning back to relax on a calm lake. Four back and side straps with snap hook is easy to install and adjust. Provide lower back with great support and comfortable. Suitable for kayaks, Canoes, inflatable boats, fishing boats, drift boats. Specifications: Materials: foam and Oxfords cloth Thick: about 13mm / 0.51in Size: about 24x53cm/9.45x20.87inch Package Includes: 1pc Kayak Backrest note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.