Reactor Under Armour Men's Green Jacket. Men's zip-up jacket with a free cut in soft woven material that is lightweight and very durable. For maximum comfort and comfort, the ColdGear® Reactor intelligent insulation is used to adapt to any activity. The insulation mentioned captures the resulting body heat, but still allows air to flow through, so that your overheating does not occur. UA Storm1 technology repels water from the surface without impairing breathability. Adjustable hood. Side pockets with closed zippers.Material: 100% polyester