BURTON [ak] Helium Stretch Insulated Pants 2026 - True Black

Insulated Technical Pants. Stretchy, breathable synthetic mid-layer pants.

Layer up for a cold day on the mountain. Stay warm at base camp. The men's Burton [ak] Helium Stretch Insulated Pants are that extra layer that makes a difference on the coldest days. Stretchy and breathable, they're made for wearing under your shell pants or bibs, but they're so comfortable you'll prob wear them for a lot more things, too.

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Features

• Warmth that Breathes Low-bulk insulation adds warmth while staying breathable when you're working hard.

• Full of Stretch Stretch fabric and waistband let you move easily without feeling restrictive.

• Practical Pockets Zippered hand-warmer pockets and a back pocket add utility and keep choice items close.

• Low Environmental Impact Bluesign® approved materials reduce impact on humans and the planet during manufacturing.

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Tech Specs

• Warmth 40g Thermacore Stretch

• Fit Regular Fit

• Fabric Stretch Breathable Lightweight 20D Nylon / Spandex Plain Weave Water-Repellent Coated Fabric

• Lining Stretch Breathable Lightweight 20D Nylon / Spandex Ripstop Water-Repellent Coated Fabric

• Stretch Fabrication

• Stretch Binding at Cuffs

• Elasticized Waistband with Internal Draw String Cinch

• Reflective Details

• Ultimate combination of high CFM super stretch fabric and stretch insulation for high output activity

• YKK® Zippers

• Zippered Handwarmer Pockets

• Zippered Back Pocket

• Warranty Lifetime Warranty

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Burton Men's Apparel Size Guide 

Size	XS	S	M	L	XL	XXL
Chest (Inches)	34-36.5	36.5-39	39-41	41-43	43-46	50-54
Waist (Inches)	29-31	31-33	33-35	35-37	37-40	40-44
Equivalent Women's Size	S	M	L	XL	XXL	3XL