X-Bionic Men X-Plorer Energizer 4.0 Shirt SH SL

The 3D Bionic Sphere System with ThermoSyphon technology maintains the perfect body temperature of 37°C in any situation to ensure optimal performance at all times. Only with X-BIONIC 4.0: Innovative Retina Ultra-High-Resolution, award-winning, patented 3D Bionic Sphere System with ThermoSyphon technology. Featuring complex 3D structures with internal and external air channels. It cools when you sweat and warms you when you feel cold. Unique comfort for explorers carrying backpacks. The three-dimensional, woven AirDuct pads are positioned where the backpack straps contact the body. Your shoulders are protected from pressure and friction by the AirDuct ShoulderPads. Your body is surrounded by the Air-Conditioning Channel® ventilation system, which continuously dissipates moisture and heat. 100% pure Swiss development. Made in Italy. Over 700 international awards and test victories, with over 800 patent applications for products featuring the "X".