Engineered from Speedo?s exclusive, longest lasting and best-selling Endurance fabric ?100% chlorine resistant fabric designed to lasts 20 times longer than conventional swimwear fabrics. ?Four-Way Stretch technology providing a body-hugging fit, great shape retention and soft comfort. ?Helps resist sagging and bagging, keeping swimwear fitting newer longer. ?Reinforced seams. ?Non-slip drawstring at waist.