Sweat is the natural cooling system of the human body and shouldn't be taken away. Instead, X-BIONIC® supports this biological process and turns sweat into energy. The ThermoSyphon is an advanced development of the 3D Bionic Sphere® System. Thanks to its new design it can be fitted to the individual body and sport specific requirements more precisely. In addition, the extended evaporation surface, enhanced 3D depth stability and improved rate of humidity transport enable the athlete to maintain his/her optimal performance level for longer.