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. Shaped cuffs for added coverage & protection. Secure, zip hand pockets