This is a Nitori gently-fitting, low-rebound futon mattress, single size. I liked it, but I'm selling it because I bought a larger size. - Low-rebound mattress - Urethane, firm - Can be folded in three - 7.5cm thick - Lightweight, can be carried by a woman - Purchased 2-3 years ago, used for a few months. After that, it was stored in a futon storage bag. I used a mattress pad, so there is basically no dirt on the front and back. However, there are small stains on the sides and edges. Please see the last two photos. Please understand that this is a used item before purchasing. It will be shipped folded in three. We also welcome combined purchases with other items. Please ask any questions in the comments. #urethane #lowrebound #nitori #futon #mattress #mat #firm