100% WATERPROOF: Standard 100 by OEKO-TEX certified, there is no need of concern for harmful chemicals or horrible odor. Back of MERITLIFE Queen mattress protector cover is made of top TPU, an invisible waterproof barrier to protect your expensive mattress. Our Queen size mattress cover effectively repels dirt and all liquids, including accidental spills, bodily fluids like sweat or urine, thus makes a clean, safe and healthy sleeping environment..COOLING & BREATHABLE: 65% Bamboo Viscose + 35% Polyester is tried to be the most breathable and softest fabric with moisture-wicking function. MERITLIFE Cooling Mattress Protector is relatively more breathable, softer than cotton terry/ pure polyester/ common bamboo rayon mattress cover..SLEEP IN SILENCE: The filling of MERITLIFE Waterproof Mattress Protector is 3D Air Fabric with ultra-fine ventilation holes, which only allows air flow, but quickly locks in invasive moisture and accelerates the moisture evaporation. There won’t be any crinkling or plastic sound when you move. You and your family will enjoy a fresh and silent sleeping environment!.18 INCH POCKET FITS PERFECTLY: Adopting Fitted-sheet Style, all our mattress pad protectors fit 8"-21" thick mattresses and all types of mattress including memory foam, latex or spring mattresses. The highly elastic skirt is made of mesh fabric and has excellent ductility to 100% fit the mattress, without any moving. You will feel the mattress as quiet and comfy as before the cover is applied..CUSTOMER SERVICE: We provide 300-day Return/Replacement Service.If you are not satisfied FOR ANY REASON, Pls contact our Customer Support and we will do everything to make you 100% satisfied..WASHING INSTRUCTION & TIPS: Machine wash cold separately on GENTLE/DELICATE cycle.Tumble dry on low. Do not bleach. Do not dry clean.Three Patterns Available: Letter Y-type ,Beehive ,Flower. We suggest you buy 2 pieces or more, so you can change one while wash the other.