Amplify your confidence in the HydroX - our latest innovation in competition swimwear. We perfected the most essential details of the race suit, starting with the fabric and the way it interacts with muscle. The threads of our proprietary MemoryFlex™ fabric are positioned to optimize the natural expansion and contraction of the muscle, providing consistent compression for the highest performance. MemoryFlex™ is a smart material that will return to its original shape throughout the stroke cycle, enhancing flexibility and compression. Simply the best, FINIS HydroX.