It’s our smartest insulation ever. No, really. It’s designed to trap in heat on the coldest days, but then circulate it away from your body if you start to feel too warm, so you never overheat. Brilliant.
Fitted: Next-to-skin without the squeeze.
ColdGear® Reactor is intelligent insulation that adapts to your activity level for the right breathability & warmth for what you're doing
UA Storm technology repels water without sacrificing breathability