Cooling & Soft Made of 55% Polyester and 45% Polyethylene, relatively more cooling,softer than cotton terry ones. Polyester can make the fabric surface more durable. This material provides a cooling effect that distributes heat evenly and regulates body temperature. NEW UPGRADED 3D AIR FABRICThe fillings of Meritlife Mattress Protector surface is 3D Air Fabric, which only allows air in, but repel liquids. So it will protect your mattress from all liquids, but also make your bed mattress more breathable, smooth and softer, will let you feel like you have been sleeping on a cloud. 100% Waterproof Mattress ProtectorWaterprof coating on the back, which makes it abrasion-free, soft and elastic. Your high-quality mattress will be protected from all kinds of liquids. will not make plastic sound when you move on your bed. Elastic & QuietWith a strong elastic skirting, deep pocket completely covers the 15-18" deep mattress from the top and sides, which can ensure your mattress protector stays in place, stopping bunching up, or slipping off. The mattress protector is quiet enough to ensure a great night's sleep. Easy Care - Cool, comfortable and easy to clean. Machine wash separately in cold water on gentle cycles, then tumble dry low. Do not soak. Size Twin 39"x75"x15"Full 54"x75"x15"Queen 60"x80"x15"King 78"x80"x15"