We have tested and tweaked, and created the best waterproof pads for you. QuickZip crib pads are flat - with no skirt - for quick changing, low profile yet providing comfort and protections. And designed to perfectly compliment your QuickZip system. This stitched quilted pad is designed for your baby's comfort:100% cotton sleeping surface, low profile, filled with pure poly fill, and polyester backing with urethane waterproofing. Machine wash warm and dry (low heat).