Speedo Turboturn Endurance+ Rippleback Ladies Swimsuit 53% Polyester, 47% Polybutylene Endurance+ fabric is 100% chlorine-resistant, quick-drying and retains its shape swim after swim Rippleback is open for total freedom of movement and comfort during long training sessions High leg height 20 times more fade resistant than standard swimwear fabric 4 way stretch technology for added softness and comfort