Splash around in the Nike Girls' Hydrastrong Strive Kneeskin 1-Piece Swimsuit. Its HydraStrong fabric enhances durability. The body is made of 51% recycled polyester and 49% chlorine resistant polyester, and its lining is made of 85% nylon and 15% chlorine resistant spandex. The swimsuit is World Aquatics-approved and USA Swimming 12 and under compliant. Nike Girls' HydraStrong Strive Kneeskin 1-Piece Swimsuit Black, 22 - Women's Competitive Swim at Academy Sports