· Premium Fiber Surface - Not only soft and comfort, but also has cooling, skin-friendly and good wicking properties· 100% Waterproof - Back of GOPOONY mattress protector is premium TPU, which not only againsts perspiration, bed wetting, liquids and stains, but also keeps breathable and noiseless· 3D Air Fabric - More soft and comfortable than the ordinary fabric protective cover, also highly breathable, which makes your bed more comfortable· 18" Deep Pocket - Fits all types of mattresses up to 21" and prevent the mattress from moving· Customer Service - We are confident in our products and we offer a 30-day return/replacement service. Please contact our customer support when needed· King (78 in x 80 in) - For frequent accidents, we advice you to buy 2 pieces or more, so you can change another one when wash one