X-Bionic Energizer 4.0

With its moderate compression, the Energizer 4.0 Shirt Round Neck Lg Sl by X Bionic fulfills all the wishes of demanding winter athletes who want to benefit from outstanding comfort and performance-optimizing thermoregulation at the same time. The functional underwear of the X Bionic 4.0 generation offers you an ultra-dense knitted fabric that integrates 13 highly effective technologies. Functional zones with temperature-balancing and protective effects are precisely positioned to support your performance on chilly winter days without making you feel constricted. At the chest, the patented 3D Bionic Sphere System is active, enhanced by Thermo Syphon technology. A 40 CM2 sweat absorption area and complex 3D structures and Y-shaped elements maximize air exchange, cooling when you sweat and warming when you freeze, now faster and more efficiently than ever.