Easy to use and is the ultimate solution for your baby in the water as no additional diaper needs to be worn with this product.Concealed water resistant layer and leak-proof leg cuffs offer containment while in the water.Super soft cotton terry lining is beautifully soft against your baby's skin. Drawstring waistband means it's easy to put on and is comfortable and secure. Made from a lightweight fabric which won't weigh your baby down in the water. Machine washable and can be tumble dried. Made from inner: 80% cotton, 20% polyester with polyurethane coating, outer: 100% polyester. Available in 4 sizes: 0-6 months, 6-12 months, 1-2 years, 2 years. Containment of solids only. For hygiene reasons swimming pools require that babies wear suitable protection when in the water. Normal swimsuits offer no protection and disposable swim diapers hold water which weighs your baby down.