The Intex Red River Run Fire Edition 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 River Run tube 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.