Description
Tech Info
Size chart
2026 Burton AK Helium Hooded Insulated Jacket
The men's Burton [ak] Helium Hooded Stretch Insulated Jacket is the midweight layer that should always be on the packing list. You can wear it hiking when it's cool and windy or under your shell to stay warm on a ridge top. It's stretchy enough for an unrestricted feel and breathable enough to wear when you're headed uphill. When you don't need it, it stuffs into its own pocket and easily stows in a small pack.
Summary
| Fit | Slim |
| Length | Hip-Length |
| Material | Stretch Breathable Lightweight 20D Nylon/Spandex + DWR |
| Waterproof Rating | DWR Coated |
| Breathability | High-CFM Stretch Fabric |
| Insulation | 40g Thermacore Stretch |
| Hood Type | Fitted Fulltime Hood with Stretch Binding |
| Warranty | Lifetime Warranty |
Fit
- Slim Fit – Trimmed silhouette sits close to the body for minimal bulk and excellent layering performance.
Material
- Stretch Breathable Lightweight 20D Nylon/Spandex Plain Weave – Water-repellent, high-stretch face fabric for active movement.
- Lining – Stretch 20D Nylon/Spandex Ripstop with water-repellent coating for breathable, flexible comfort.
Insulation
- 40g Thermacore Stretch – Lightweight synthetic insulation built to flex and breathe through high-output movement.
Waterproofing
- DWR Coated – Durable water-repellent finish sheds light moisture without added bulk or stiffness.
Breathability
- High-CFM Stretch Fabric – Breathable fabric designed for layering on hikes, skintracks, and active days in motion.
Pockets
- Zippered Handwarmer Pockets – Fleece-lined for warmth and secure storage.
- Zippered Chest Pocket – Media-compatible with internal port and cord routing.
- Packable Pocket – Packs into the wearer's left handwarmer pocket for storage in a pack or on a harness.
Additional Features
- Stretch Fabrication – Four-way stretch in shell and insulation for unencumbered movement on the go.
- Fitted Hood with Stretch Binding – Fulltime, helmet-friendly hood maintains a snug, flexible seal.
- Lightweight Low-Profile Back of Hem Cinch – Adjust fit and coverage without adding bulk or stiffness.
- Utility Loop in Pocket – Attach gloves, clips, or essential gear with ease.
- Reflective Details – Adds visibility for early starts, stormy weather, or low-light alpine missions.
- YKK® Zippers – Trusted performance and water resistance in all exposed zips.
- bluesign® Approved Materials – Sustainably produced for minimal environmental impact.
Size Chart
| Size | Arm (in) | Chest (in) |
|---|---|---|
| M | 33 | 39–41 |
| L | 33.5 | 41–43 |
| XL | 33.5–34 | 43–46 |
| XXL | 34–35 | 46–50 |
Fit Styles
- Slim Fit – Cut close to the body for a modern, streamlined look with room for base layers and light mid layers.
- Regular Fit – Traditional fit that’s balanced and comfortable with enough space for layering and full mobility.
- Relaxed Fit – Roomier cut with a casual feel and extra space for layering and movement.
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