X BIONIC Invent 4.0 Shirt Round Neck Long Sleeves Men Baselayer Functional Sport T Black/Charcoal, M

The functional underwear of the x-bionic-4.0 Generation is designed for men who wish light compression and effective thermoregulation for a moderate level of activity The high-resolution Retina process produces an exceptionally dense material in which the functional zones are seamlessly integrated and can act with pinpoint precision The legendary 3D Bionic Sphere System provides optimal thermoregulation in the front and tailbone areas with proven effectiveness Sweat traps prevent sweat gutters and additionally support the cooling effect. The Air-conditioning Channel and the air Guides are also responsible for temperature-controlled ventilation 100% research, development, design and communication done in Switzerland. More than 600 awards and test Wins, over 800 patent registrations worldwide for the brand with the "X"