Bed Bug/Allergy Relief Waterproof Zippered Vinyl Mattress Cover/Protector (Twin) HEAVY WEIGHT VINYL zippered cover surrounding entire mattress. Deep Pocket Construction - All Sizes Available Waterproof vinyl surface in White Color. No see thru underneath. ALLERGY BARRIER  DUST MITES & ALLERGENS Protects against bacteria. Protects against bed bugs. Plastic Rust Proof Zipper. Just wipe clean with soapy cloth as needed. Strong and Tear Resistant Vinyl Material - just keep away from sharp corners and edges when installing. Size : 39" x 76" x 9"