AB Lifestyles 70x80 Camper King Waterproof, Dust Mite Proof Mattress Cover for a Camper RV King bed 70x80 Water Proof & Dust Mite Proof Mattress Covers for your camper, RV or Travel Trailer mattress that are SUPER QUIET! No crinkling noises like with vinyl covers! Size: 70x80 Camper King Made of a specially made fabric that is super absorbent on top, and backed with polyurethene to prevent moisture from penetrating Machine Washable hundreds of times! Proudly Made in the USA!