The Alpha LIFALOFT™ Jacket is based on the design and silhouette of the Alpha 3.0 jacket, but insulated with LIFALOFT™ insulation, so it's even warmer. Because this jacket is so lightweight and yet so warm, it's the go-to jacket for Swedish Ski Team Alpine. This jacket packs a big punch for something so light, so it's perfect for skiers who don't want to pack a lot for long trips away from home.