"The Babaloo reusable swim diaper is so cute, and it is a requirement to attend swim lessons and all water related activities. Don’t need an additional diaper. It will help the baby feel protected and babies have a reusable swim diaper that fits comfortably while enjoying time in the water. The plush material is comfy for the bottom and the legs and waist sides are super stretchy. Provides UV 50+ UPF Protection from sun's dangerous UVA and UVB rays. Cressi even has a helpful size chart to choose the right size."""