X Bionic Men's The Trick 4.0 Run Short Sleeve Shirt

The Spine Insulation Zone along the spine activates your sweat production even before you overheat, so you train longer at optimal temperature The energy released by the earlier onset of welding cooling flows directly into your sporty performance ThermoSyphon system, the latest expansion stage of the legendary, patented 3D Bionic Sphere System optimises your skin climate management thanks to large replacement zones on the front Experience more density and effectiveness thanks to the production quality in Retina Ultra High Definition technology