Premium Quality Materials 3 layer 0.6mm thickened PVC clamping net material UV resistant coating Waterproof and leakproof Super durable and stable Apply to fresh water, salt water and extreme humidity Super Stable and Safe Boat 3 separate air chamber designs, give you extra protection if one of them is damaged Two hull air chambers + Bottom air chamber The V-shaped hull design reduces drag on the water Easy to Inflate Hand pump with 5 nozzles for easy inflate Boston valves for quick inflation and deflation