The Mont Bell Alpine Light Down Parka gets roughly 10% lighter and softer without sacrificing durability! Functional mid-layer"s flaunt characteristics essential for comfortable backcountry activity: optimized warmth to weight ratio and exceptional compressibility. The secret to the warmth of these garments not only relies on the high lofting 800 fill power goose down, but the inherent wind shedding ability of the silky 20-denier Ballistic Nylon shell. By blocking a large percentage of wind, a relatively light layer conserves the heat your body is naturally producing. Designing outdoor clothing with warmth to weight ratio in mind is great, but we also like to think the Alpine Light pieces succeed when it comes to warmth to dollar ratio.