Waterproof protector guards the top and sides of your mattress against liquids and nighttime accidents, stains, dust mites, and allergens Smooth brushed polyester surface is soft and quiet, combined with a breathable waterproof backing for excellent protection that will not change the feel of your mattress 14-inch deep pocket stretch skirt has a thick, full-length elastic pulls the corners snugly for a smooth fit on most mattress types King protector measures 76 x 80 inches; 10-year International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.