our mattress protector is made of upgraded tpu membrane backing that can effectively resist perspiration, saliva, liquids and stains but allows air to pass through. it's a great waterproof mattress protector for potty training, nursing kids and playing with pets in bed.IMBLOO mattress cover is made of natural bamboo fiber and polyester. The bamboo fiber surface has better cooling, skin-friendly and good wicking properties. Don't worry about not being breathable, harmful to your skin or staining your mattress.The filling of IMBLOO queen mattress protector surface is 3D Air Fabric that only allows air to enter but repel liquids. It makes mattress protector more breathable and soft. And it won't make any noise When you turn over in bed or move the mattress. This is great for baby and sleep disorder.The side skirt of this queen mattress protector is made of rib knitted fabric and fitted with an elastic knit band that enable the mattress cover to fit all mattresses up to 21 inches. Gift box packaging is more premium than plastic packaging and more suitable for gift giving.Machine wash cold with normal household detergents that do not contain bleach and tumble dry low. DO NOT BLEACH, DO NOT DRY CLEAN AND DO NOT IRON.