... wire is sewn in to prop up.Dia.:inner 15cm, out 27cm,or as your requirement.Material : nylon, 190T ... Can be folded into a pouch.Take it out of its pouch and "POP", it springs open into a 27cm diameter sun ... hat! Then, with a simple twist, it becomes a small disk that goes back into a matching ... !Suitable as either a sun or rain hat, it really is the ideal all-weather promotion for outdoor ...