I bought this last year, but I only used it once and it's been in the closet ever since. This is a lightweight chair that you can sit on, designed to be used with a sleeping mat for tent camping or long treks. *Mattress not included. (Product Description) 20 inches Size: 51cm width Weight: 290g Material: 75D ripstop polyester fabric, fiberglass stays Thank you for looking. Features: Folding, Compact