Made of natural bamboo and polyester with a soft quilted, peach-fuzz like microfiber layer for comfort, this White quilted three layer crib mattress cover is wrinkle free, easy care, and high performance. Waterproof, this mighty cover can hold and absorb more than 42 oz of moisture or liquid, keeping your mattress dry and wicking away moisture from your baby. Another great and unique feature is a soundless dual layer of waterproof material that is blended with more soft microfiber so you will never hear any annoying crinkly plastic noise. This protector is breathable and hypoallergenic, preventing bacteria and mold from breeding in your baby's mattress. Designed like a fitted sheet, this protector stays in place and easy to take on and off. It fits a standard crib mattress of 28" x 52" and can fit mattress heights up to 9".