Wet bags are made from waterproof PUL material, specially designed for cloth diapers! These bags are designed to hold soiled or wet diapers until wash day, and will contain moisture as well as smell. These bags have countless uses! They are great for diapers, mama cloth, nursing pads, cloth wipes, toys, gym clothes, wet bathing suits, etc! To wash, turn inside out and wash with any other laundry.