It's the lightweight jacket you can actually work out in. That's because the insulation adapts to your activity level, so as you heat up, it lets out warmth.
Fitted:Next-to-skin without the squeeze
ColdGear® Reactor intelligent insulation adapts to any activity for non-stop comfort & total versatility
Lofty insulation with quilting that traps heat, but still allows air to flow so you don't overheat
UA Storm technology repels water without sacrificing breathability
Smooth, stretch-woven body fabric is lightweight & durable
Brushed panels offer extra breathability & warmth
Generous, 3-panel hood construction with bungee adjust