The Helly Hansen Women's Alphelia Lifaloft Jacket is a nice thick insulated jacket, ideal for a sturdy and warm outerlayer when out on the slopes! The jackets warmth comes from a sturdy build and thick Lifaloft insulation which is not only nice and warm but packs down light and doesn't weigh much. A great winter jacket for those cold days out on the hill, the Helly Hansen Alphelia Lifaloft Jacket is a must have for the ski season.