Burton [ak]® Helium Stretch Insulated 2027 – Insulator Vest

Description

The Burton [ak] Helium Stretch Insulated Vest is built for backcountry splitboarders and ski tourers who need a versatile insulating layer that earns its place in the pack. Worn on the skin track or tossed on at the summit, it bridges the gap between output and warmth without slowing you down.

At its core is 40g Thermacore Stretch insulation paired with a 20D nylon/spandex ripstop shell—water-repellent coated on both the lining and outer fabric—for a low-bulk, breathable package that moves with you rather than against you. A regular fit keeps things clean and layerable, while YKK zippers, a back-hem cinch, reflective details, and a media port round out the thoughtful build. The whole thing packs into its own left handwarmer pocket when the sun comes out.

Who it's for

If you generate a lot of heat on the way up but need real warmth at the top, this vest is your answer. The stretch fabrication suits high-output athletes who hate feeling restricted, and the packability means there's no excuse to leave it at the car. It's especially practical for splitboarders who are constantly adding and shedding layers.

FAQ

• Can it be worn as an outer layer? The water-repellent coating offers light weather resistance, but this vest is designed primarily as a mid-layer. It works best under a shell in harsher conditions.
• Does it pack down small enough for a hip belt pocket? It packs into its own handwarmer pocket, making it compact enough to stow easily, though whether it fits a hip belt pocket will depend on your pack's specific pocket dimensions.