This fitted cotton crib pad adds extra comfort to your baby's bed while providing a protective waterproof layer. The sateen-stripe quilted top is breathable, extra-absorbent, and made of 100% cotton, with four layers of protection and the ability to wick away up to seven cups of wetness. Underneath, a waterproof, 100% vinyl lining shields the mattress from moisture. When your baby's diaper isn't enough, this "diaper top" crib pad is a great backup!