January's chill will try to keep you from doing what you love, but you'll be ready for whatever Mother Nature throws at you with the Patagonia Women's Insulated Snowbelle Pants. H2No Performance Standard two-layer shell provides incredible waterproof protection that remains breathable during backcountry ascents, while a DWR finish keeps moisture off during stormy weather. Updated this year with a lightweight Thermogreen insulation to provide a barrier against the cold and designed to retain heat even if you somehow manage to get it wet.