Protect your mattress with a reusable, waterproof underpad. It provides comfort, while offering excellent protection. It is designed so that a waterproof absorbent layer holds fluids while the vinyl liner keeps the surface dry. Built to withstand many washings. Features a quilted, wrinkle-resistant cover. 33" W X 35" L. 100% brushed polyester tricot top layer. 75% polyester/25% rayon soaker middle layer. Bottom layer is vinyl reinforced with a polyester tricot. Machine wash. Made in the USA.