Conquer the peaks of ambitious performance sports with the Energy Accumulator 4.0 Melange Shirt Round Neck Women. State-of-the-art technologies at the highest level increase your performance and strengthen your endurance in all climatic conditions. The high-tech functional underwear for women benefits from the groundbreaking technologies of the generation X-BIONIC-4.0 and integrates innovative functional zones in the ultra-dense material that have a thermoregulatory effect and at the same time ensure unsurpassed comfort. The legendary patented 3D Bionic Sphere System with ThermoSyphon technology is more powerful than ever before and ensures a constant feel-good climate even more efficiently.