I received this as a gift, but I'm not using it, so I'm putting it up for sale. The inside is made of an absorbent material, so you can put wet folding umbrellas, chilled bottled drinks, etc. in it. It has a U-shaped zipper, making it easy to take things in and out, and you can unfold it and use it like a towel. Size (when the zipper is closed) Length: Approximately 27cm Width: Approximately 11cm