X-Bionic cools you down. And cooling down means speeding up.Endurance athletes use up to 97% of their energy just regulating their body temperature, scientists have discovered. This means keeping cool improves performance. Sweating is mankind's own natural and effective system for cooling down. X-BIONIC uses every drop of your sweat to cool you down by leaving a thin layer of perspiration on the skin when you are active, which provides a cooling effect when it evaporates. Excess sweat is processed and then evaporated by the 3D-BionicSphere System. We make energy from sweat.