Fight the cold and go enjoy the great outdoors with the Columbia Marquam Peak Fusion men's insulated jacket. This waterproof and breathable jacket features a Thermarator™ polyester insulation combined with sealed seams to help you stay dry and comfy. A key element of this jacket is the Omni-HeatTM Infinity thermal reflective technology, an innovation that keeps you warm without compromising breathability. This optimized version features more thermal reflectors that mirror your body heat instantly when you move.