Oops! Sheet Waterproof Cotton Pillow Protector Hypoallergenic Bed Bug Proof Zippered (1) Standard Size 80% cotton (face), 20% poly (threads) 100% polyeurethane waterproof barrier Imported Waterproof membrane barrier for total protection Protects against liquid stains, dust mites, bed bugs and allergens Great for asthma, eczema, and allergy sufferers Hypoallergenic plush cotton surface naturally absorbs moisture Zippered design