Burton Women's [ak] Helium Hooded Stretch Ins Jacket True Black 2026Shed layers for the climb. Add layers for the descent. Simplify your splitboarding program with the women's Burton [ak] Helium Stretch Insulated Vest. It's the lightweight layer you can wear on the up and the down. And when the sun shines and the temps rise, it packs into its own pocket for easy stowing. Waterproofing: Stretch Breathable Lightweight 20D Nylon Spandex Ripstop Water Repellent Coated Fabric Insulation: 40g Thermacore Stretch Fit: Slim