This inflatable sleeping bag is made of external ripstop nylon cloth and internal pvc plastic nylon that makes it durable and puncture resistant. PVC makes it air tight portable and compact instantly set up or take down, comfortable to use and enjoy. It easily fits 2 to 3 people suitable for beach park camping or other outdoor sports description perfect craft this inflatable couch. It can bear 330 to 440lb that means two-three people sit on it at the same time. Portable design: The biggest advantage of this product is portable design.you can put it in the buggy bag and take it to anywhere you like easy use take it out and open the bag against the wind. then the wind would be placed in and it is filled with air soon.it is only several seconds from unfolding to enjoying.  Use it when you go for camping out door bbq or beach swimming any other out door activities.It must be your first choice of couch or sleeping bag it is light space saving ergonomic design stuff with air made by nylon material help you feel more comfortable after sit or lying on it making the darn thing feel like a nonswaying hammock