The Columbia Arctic men's down insulated jacket is a must-have for cold-weather adventurers. Featuring down insulation and Omni-Heat Arctic technology, this puffer is compressible enough to be folded into a pocket, so you can easily carry it in your hiking or travel bag and be prepared for any eventuality. Put into the right systems, a good sequence of layers moves moisture away from your skin, conserves or dissipates heat and provides you with weather protection. Here they are. The first layer, worn next-to-skin will provide warmth and quickly move moisture away from your skin. Then, the second layer is the insulation and fleece that provides warmth while also dissipating heat during periods of high output. And finally, the third layer, the shell, which is the most weather-protective layer, worn on the outside of all other layers.