Speedo Aquatic Endurance+ Polyester Side Shirred Contourback Swimsuit with Tummy Control, Navy, 16 lycra 50% Polyester, 50% PBT Endurance+ fabric is 100% chlorine resistant with new 4-way stretch technology for a body hugging fit Soft cup construction for maximum support and a smooth fit Conservative cut for maximum coverage Hand wash cold, lay flat to dry