With a drawstring (removable), you can change the shape by fastening the side buttons, and it's made of nylon so it can be folded up small ◎ I bought it at Shimamura, but I'm selling it to declutter ᵕ̈* It's new and unused, but it has been in someone's hands once, so please only purchase if you understand this ◎ I plan to fold it up small for shipping, and there may be some creases, but please understand.