ColdGear® Reactor is truly intelligent insulation. It's warmer when you're less active but cooler when you get moving.

• ColdGear® Reactor intelligent insulation lining adapts to your activity level for the right breathability & warmth
• UA Storm finish repels rain & snow without sacrificing breathability
• Armour Fleece® shell is built for performance—it's lightweight, quick-drying & still really warm
• Smooth, chafe-free flatlock seam construction for zero distractions