Rio Home Fashions 1/2-Inch Quilted Memory Foam, Dust Mite and Allergen Resistant Mattress Pad, King Top: Face: 100% Viscose/Inner & Back: 100% Polyester; Back: 100% Polypropylene; Skirt: 100% Polyester Imported Rayon from bamboo-blend fabric that is water repellant and the pad is dust mite and allergen resistant^1/2-Inch quilted memory foam^Stain resistant cover^18-Inch stretch knit skirt^Easy care machine wash and dry