I purchased this at Akachan Honpo, but ended up not using it, so I'm selling it. ■Product Information This is a fitting sheet made of 100% cotton double-weave gauze, known for its gentle feel on the skin. It's machine washable at home (please use a laundry net). It's an all-around elastic type for easy attachment and removal. It's for regular-sized futon mattresses. It has a cute elephant pattern. ●Material: 100% Cotton ●Size (approx. cm): 70 x 120 ●Machine washable (use net)