Linenspa Classic Mattress Pad with Hypoallergenic Microfiber Cover - Twin XL Microfiber 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. Microfiber shell and thin layer of down alternative fill create soft, breathable comfort Quilted for durability and a smooth, even surface Corner elastics secure pad to mattresses up to 18 inches thick Twin XL size mattress pad: 39" x 80"