This Waterproof Inflatable Air Sofa is made of high quality 75D*210T nylon material with TPU coat, waterproof, can bear about 500 lb, that means 2-3 people can sit on it at the same time. The biggest advantage is portable design. You can put it in the match pouch and take it to anywhere you like, such as camping, outdoor BBQ, beach swimming or any other outdoor activities. Easily inflated and pack up.