More power without performance slumps? Get more with the X-BIONIC THE TRICK G2 RUN SHIRT SH SL MEN. This high-tech running shirt for men is part of the new X-BIONIC 4.0 generation. It optimizes runners energy management with the patented unique THE TRICK technology. It revolutionizes your thermoregulation by activating the production of perspiration before you begin to overheat so you can train, compete and remain constantly active at optimal body temperature. The energy released by the earlier onset of evaporative cooling flows directly into your running performance. This mechanism acts like an energy booster for your performance and activates the best runner inside you. Your run will be comfortable too thanks to the innovative collar construction, which ensures a perfect fit. The integrated Flexor arm cuffs prevent the sleeves from slipping. Even during your first running workout, youll already feel the technological advantage of the ThermoSyphon system, the next generation of the legendary patented 3D Bionic Sphere system. It optimizes your skin-climate management through large exchange zones on the chest and back. This shirt is a precision instrument for maximum performance because its manufactured by highly precise state-of-the-art machines in Retina ultra-high-definition quality and accordingly offers significantly more effectiveness than the previous generation X-BIONIC products.