Description
Tech Info
Size chart
2026 Burton AK Helium Fleece Half Zip
Winter, spring, or fall, the men's Burton [ak] Helium Grid Fleece Half-Zip is designed for high-output activities where sweat-wicking and breathability are a must. From splitboard tours to cool-weather hikes, it's the light, go-to layer that can stand alone on the hike up, add warmth under a shell, and offer year-round versatility.
Summary
| Fit | Slim |
| Length | Hip-Length |
| Material | 94% Recycled Polyester / 6% Spandex Grid Fleece |
| Breathability | High – Grid Pattern + HeiQ Smart Temp |
| Insulation | Midweight Grid Fleece (225 GSM) |
| Warranty | Lifetime Warranty |
Fit
- Slim Fit – Close-to-body fit for low-bulk warmth and layering versatility during high-output movement.
Material
- Midweight Flat-Face Grid Fleece (225 GSM) – Made with 94% Recycled Polyester / 6% Spandex and treated with HeiQ Smart Temp & HeiQ Fresh for temp regulation and odor control.
Insulation
- Grid Fleece Midlayer (200-weight) – Offers warmth and airflow, ideal for wearing as a stand-alone or under a shell.
Breathability
- Grid Patterned Fleece – Increases airflow and dries fast to keep your core regulated during effort-heavy climbs or transitions.
Pockets
- Zippered Back Pocket – Streamlined pocket placement for low-profile storage.
Additional Features
- Center Front Half-Zip – Makes it easy to vent or pull on over layers.
- Stretch Thumb Loops – Keeps sleeves secure under jackets or gloves.
- Living Lining® Midweight 200 – Balances breathability and warmth by reacting to body heat and sweat.
- Anti-microbial Fabric – HeiQ Fresh helps reduce odor buildup over time.
- Chafe-Free Softlock Seams – Feels smooth and irritation-free even on long missions.
- Double Needle Stitching – Reinforces sleeves and hem for long-term durability.
- YKK® Zippers – Smooth and reliable for venting or storage access.
- bluesign® Approved Materials – Sustainably produced from fiber to finish.
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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