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

The 3D Bionic Sphere System with ThermoSyphon technology maintains the perfect body temperature of 37°C in every situation to ensure optimum 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. With complex 3D structures of inner and outer air channels. It cools when you sweat and warms when you're cold.
Unrivalled comfort for explorers who wear backpacks. The three-dimensional, woven AirDuct pads are positioned where the backpack straps rest against your 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. 700+ international awards and test wins, 800+ patent applications for the products with the "X".