Endurance+ Closed Back WOMEN'S PERFORMANCE SWIMSUIT Engineered from our exclusive, longest lasting and best-selling Endurance+ fabric. Chlorine resistant with superior color retention designed to lasts far longer than conventional swimwear. Unique four-way stretch provides body-hugging fit, great shape retention, and soft comfort. Helps resist sagging and bagging. Provides excellent support and freedom of motion. Perfect for competitive swimming and training. Fabric: 50% Polyester/50% PBT.