COLDGEAR INFRARED ColdGear Infrared Worn only once, stored at home. <Concept> • ColdGear is Under Armour's winter line, a series designed to be "warm and easy to move in during cold weather." • ColdGear INFRARED, within that line, uses "far-infrared, heat-retaining ceramic print" on the inside of the fabric (the side closest to the skin) to "trap and reuse heat emitted from the body, enhancing warmth." This is the designed technology. • It claims to provide "+2°C of warmth" just by wearing it, and it's characterized by providing warmth without the need for thick layering. Warmth that lasts. <Size Details> • The tag indicates 185/104A. The "185/104A" notation is a foreign (or international standard) size indication, based on "height/chest circumference." • Height: approximately 185 cm, Chest: approximately 104 cm, Body type: A (standard build). • For people with a height of approximately 180-185 cm. • For people with a chest and build of around 100 cm, medium to large build. And "standard build (A build)."