The Classic Backrest Water Hammock is a massive floating island with a large central mesh relaxation area and features a removable backrest to create the best floating dock ever. The outer chamber is made of new heavy duty, next generation material with thousands of internal fibers to create a sleek, flat surface strong enough to drive a car over when properly inflated. The central mesh water hammock provides comfortable support for cooling off. Perfect for the boat, lake, pool or beach. Welcome to the future of leisure.??