New, unused mattress cover. Single size / Black / Mesh material / Compatible with tri-fold types. The breathable mesh material makes it less likely to get stuffy and is easy to use all year round. Perfect for tri-fold mattresses and easy to put on and take off. I bought it two months ago, but I haven't had a chance to use it, so I'm selling it. It's new and unused, but it's been stored at home, so please purchase only if you understand. Instant purchase OK ◎ Feel free to comment if you have any questions.