This AIO (All-in-One) diaper is as easy to use as a disposable diaper. The OneSize diaper grows with your baby from birth to potty training. The size of the diaper is adjustable with snaps and Velcro, allowing it to fit your child's body shape. Your baby's delicate skin is protected from moisture by the extremely absorbent core and the stay-dry inner layer, keeping it fresh and dry. The elastic and water-repellent outer layer makes the diaper suitable for very active babies. The unique system of the removable core makes washing the diaper a breeze and also saves time during drying. The extremely soft inner layer remains soft wash after wash, making the diaper the most comfortable wearing experience for your baby.