Endurance®+ fabric Long-lasting and chlorine resistant Powerback design for mobility Eye-catching print Get a stand-out look for the pool in the MirrorGlow Powerback Swimsuit from Speedo. A striking, dynamic print will keep you ahead of the pack as will a design that's made for racing. The high cut leg and thin straps allow for freedom of movement so you can stay focused on your swim. Endurance®+ fabric is fully chlorine resistant and lasts for longer.