When you slide out of the car at the trailhead, pull on the Columbia Men's Lone Fir 650 Turbodown Hooded Jacket to stay cozy. A combination of TurboDown and Omni-Heat synthetic insulation shuts out the cold air around you as an Omni-Heat reflective lining traps the heat you create and returns it back to you. Water-resistant fabric discourages moisture from seeping through in case you happen upon a flurry while you're hiking, and an adjustable hem and bindings at the cuffs and hood seal off entry and exit points.