These are the swim bottoms she ll wear all summer long! Made from a stretchy blend of polyester and spandex they have a generous cut for extra modesty and a no-tug design that keeps them from shifting around and riding up. She can run swim jump and play and they ll stay in place and keep her covered. The amazing fabric also provides Upf 50 sun protection. Combine them with a rash guard and she ll need less sunblock to stay safe from burns and you ll enjoy knowing she s covered in protection that can t be washed away.