What Our Gearhead(R) Experts Are Saying: "This is my go-to insulation piece for skintracks, cold chairlift laps, or wearing around town. It packs down tiny, moves with me thanks to the stretch, and stays breathable even when I'm working hard. It's surprisingly warm for how light it is."When the temperature drops and our pace picks up, the Burton AK Helium Hooded Stretch Insulated Jacket earns its spot in our layering system. Built with expedition-grade versatility, this lightweight midlayer delivers the warmth and breathability we need for splitboard missions, inbounds layering, or chilly mountain transitions. The Helium's stretch construction offers unrestrictive movement while climbing or skinning, and its breathable insulation keeps us from overheating. When it's not needed, it stuffs easily into its own pocket to save space in our pack. Whether we're earning turns or just staying warm on the way to apres, this piece delivers technical performance in a featherweight package.