ENHANCED MORE PERFORMANCE WITHOUT DOPING «Marathon runners consume up to 97% of their energy for controlling their body temperature.» (Professor Winfried Joch, Institute for Sports Science at Münster University in cooperation with Dr. Sandra Ãœckert, at Dortmund University) X-BIONIC® Running Wear utilises the energy from sweating and helps to maintain the ideal body temperature of 37°C when doing sport. The effect is 30% more energy for your sport.