When you need serious protection from the cold, turn to an insulated jacket. Down jackets are lightweight, super warm, and have a great comfort range. Down will retain its shape and loft over the long haul, while wicking moisture away. The downside of down is that it does not retain warmth as well when wet, so if you plan on using your jacket in wet conditions choose one with a waterproof shell or check out some of the newer synthetic insulation options, as synthetic fill jackets provide warmth even when wet. Today¿s down and synthetic jackets represent years of evolution and are light-years ahead of what we had just a few years ago. These new lightweight, highly versatile jackets will keep you warm even in the coldest of conditions. Choose from companies like Marmot, Mountain Hardwear, Patagonia and more.