Protect you and your mattress with comfortable, 100 percent waterproof material. AURAVE Mattress Protector has a soft terry top and quiet waterproof backing that blocks fluids, dust mites and allergens from reaching your mattress. The terry surface is absorbent and comfortable without changing the feel of your mattress. The lightweight fabric is backed by a polyurethane (PU) membrane with microscopic pores. Air can pass through for a comfortable climate, but liquids and allergen cannot penetrate the membrane. Protector can be machine washed and dried.