From the snowy forests of Maine to the wind-swept summits of Colorado the Marmot Women's Aruna Down Jacket is a toasty barrier from frigid winter conditions. 600-fill down insulation provides exceptional warmth-to-weight for a wide variety of wintertime activities ranging from high mountain hikes to snowshoeing across expansive boreal forests. Best of all Marmot's Down Defender prevents damp moisture-laden air and oncoming snow showers from compromising the down's heat-trapping loft. In fact Marmot claims this treatment allows its down insulation to remain dry ten times longer than untreated down. Ultimately this technology makes the difference between being pleasantly warm and shivering cold in damp winter weather. Designed for light-and-fast alpine missions the shell features polyester ripstop for low-bulk and easy packing. The shell's DWR treatment sheds oncoming snow and rain showers to prevent them from compromising the down's heat-trapping loft. Zippered hand pockets carry energy-boosting snacks and small accessories when you're skiing hiking and getting after it during the wintertime.