The Speedo Super Pro Back features wide straps for superior support and comfort. Engineered from Speedo's exclusive, longest lasting and best-selling Endurance+ fabric that is 100% chlorine resistant fabric designed to lasts 20 times longer than conventional swimwear fabrics. Suit has four-way stretch technology providing a body-hugging fit, great shape retention and soft comfort that helps resist sagging and bagging, keeping swimwear fitting newer longer. The suit features lower back and higher leg cut for better freedom of motion in the water. A front liner for added comfort this 50% polyester, 50% PBT swimsuit is just what you need for a great swimming experience.