Meet the latest weapon in the war on cold: UA’s ColdGear® Thermo. It weighs about the same as our best-selling ColdGear® Evo fabric, but manages to deliver even more warmth-for-the-weight. The power lies in the unique hex-pattern. It offers an extra layer of heat-trapping warmth without packing on bulk. What you get is a ColdGear® baselayer built for the extreme cold.