I work as an International Mountain Leader for Let Loose with Adventure running snowshoeing holidays and avalnche training in the Pyrenees. I've been wearing this jacket all winter with a light fleece and base layer underneath and in temperatures of minus 13 degrees C on the summits. It has been first class, really comfortable to wear, good sized pockets and the sleeves are long so they come down over gloves keeping the draughts out. I've been digging snowpits and rolling around in the snow and jacket has stayed dry and very warm. Highly recommended.