Royal Velvet 250-Thread Pima Cotton Ultra Mattress Pad^King : 29.99ID: 10002764 The natural softness and luxury of pima cotton surrounds an ultra-smooth, ultra-lofty pad that's over-filled with 13 oz. of DuPont polyester fiber per square yard. LYCRA stretch skirt fits mattresses 7" to 21" thick. Machine wash and dry. Made in the USA of imported materials.