The inner of the diaper cover is made from high quality PUL and the outer is a 100% cotton designer print * Top and bottom waterproof PUL flaps hold your cloth diaper in place * Double gussets are gentle on your baby"s thighs, but contain even the biggest mess. * A double row of waist closure snaps makes for a great fit without wing droop * Size 1: 6-18 lbs.