What Our Gearhead(R) Experts Are Saying:"I keep this vest in my pack all year because it's so light and compressible, I forget it's there until I need it. Whether I'm layering it under a shell for ski touring or tossing it on during a windy summit break, the 800-fill down is instantly warm without bulk."We reach for the Norr na trollveggen down800 super light Vest when our days demand versatile insulation without weighing us down. Norr na's commitment to lightweight, high-performance design shines here-this vest disappears into a pack yet springs into action with cozy, wind-blocking warmth at the summit, on the skin track, or during a chilly campsite breakfast. Built with 100% recycled 10D nylon aeroDownproof fabric, it delivers impressive durability for its weight, while the RDS-certified ExpeDRY 800-fill down packs serious warmth-to-weight performance. Elastic cuffs and hem seal in heat, a high collar shields from gusts, and the asymmetric longer back adds protection where we need it most. From technical mountaineering to everyday winter wear, it's our four-season secret weapon.