If you demand the best in thermal warmth and lightweight technical design, few down jackets can match the warmth-to-weight ratio found in the Women's Diez Jacket from The North Face. This is the lightest 900-fill women's jacket created by The North Face-but it's also extremely packable. The entire jacket neatly compresses down to fit inside one of the hand pockets. This easy compression and portability makes the Women's Diez Jacket ideal for winter travel--even if you're not headed to a ski area. The exterior Pertex(R) 10 denier nylon ripstop fabric is fairly durable and water resistant. If you're skiing in the rain, you probably want to add a shell for waterproof protection. If you're snowboarding, you might want to reinforce your Diez Jacket with a rugged alpine shell to minimize the risk of potential fabric snags. That said, The North Face made their Diez Jacket for their Summit Series(R) collection, so it's completely compatible with climbing harnesses and mountaineering backpacks.