Fluidproof, rubber feel, fitted pillowcase. High quality, tough and tactile and fluid proof, these pillowcases are designed to protect your pillows from all your bedroom fun. Breathable and machine washable. With a seam-free top surface, it is two-ply and engineered. Features a rubber feel, polyurethane fabric. Put it in the wash and go again. King size. @SANFRANCISCO