This Intex Camo River Run I Inflatable Tube is designed to fit an adult and it's perfect for tubing down the river, in the lake, or in the pool. The Intex River Run 1 is designed for high performance fun. The bottom of the tube has a mesh layer where the water keeps you cool in the sun. The cup holders and backrest are added comforts on the water. The 18 gauge (0.46mm) vinyl material is durable and cool to the touch. You never have to ride the black rubber tubes that can give you tube rash or that uncomfortable burning sensation in hot weather. The Intex River Run I Inflatable Tube also features a quick release valve that deflates the tube in less than 60 seconds. Its separate air chamber for its back rest lets you set the firmness just the way you like it. Tubing veterans, as well as new tubers will love the Intex Camo River Run I Inflatable Tube.