Linenspa Waterproof Smooth Top Hypoallergenic Mattress Protector - King NOTE: PLEASE CHECK THE "Sold by" SELLER NAME, located directly above product sizes. Only products sold by LINENSPA are GUARANTEED GENUINE. If you order from a different seller, you will not receive the GENUINE PRODUCT that is shown and advertised. Top of mattress protection against liquids, dust mites and allergens 100% waterproof with a deep-pocket fitted sheet design that fits up to 22-inch-deep mattresses Breathable inner layer allows air passage while blocking liquids to ensure a comfortable sleeping environment Smooth, hypoallergenic surface is quiet and will not change the feel of your mattress