100% WATERPROOF & NOISELESS: Back of MERITLIFE mattress protector cover is top TPU, an invisible waterproof barrier to protect your expensive mattress.They effectively repels all liquids, including accidental spills, bodily fluids like sweat or urine, thus making a clean,healthy sleeping environment.Our mattress Protectors are silent and will not make plastic sound. COOLING & BREATHABLE BAMBOO:Made of Eco-friendly & Natural Bamboo,the combination with polyester creates an Ultra Soft fabric with moisture wicking function. Adopting new cooling Tech. our Mattress Protectors are relatively more cooling,softer than cotton terry ones. NEW UPGRADED 3D AIR FABRIC: The fillings of Meritlife waterproof Mattress Protector surface is 3D Air Fabric, which only allows air in, but repel liquids.There won’t be any crinkling or plastic sounds when you move.