The all-new completely redesigned AMP swim diapers offer better leak protection than ever before! Waterproof PUL fabric keeps everything contained and the super soft mesh fabric is soft against your baby's sensitive skin and does not absorb water. The snaps make the diaper to be perfectly adjusted to your baby and allow for a quick and easy clean should the need arise. With two adjustable sizes, you can get a perfect fit every time! Small 6-20lbs Large 15-38lbs