Scope the route. Hike to that line. The men’s Burton [ak] Helium Stretch Insulated Pants deliver breathable warmth in a lightweight design for backcountry missions and high-output activities. The stretch fabric lets you move naturally while keeping it light and breathable. It’s the midweight layer you can wear for climbing when it’s cool and breezy and under your bibs to stay warm when it’s cold.
Regular fit is just right: Not too tight or too baggy
Stretchy, breathable, and lightweight nylon plain weave fabric
Breathable with light wind resistance for medium-intensity activities where breathability is a higher priority than wind resistance and added layering helps provide warmth
Thermacore stretch insulation [40g] for focused warmth and enhanced breathability; [ak] DWR coating
Elasticized waistband with internal drawstring cinch; Stretch binding at cuffs
Zippered back pocket and zippered hand-warmer pockets
bluesign® approved materials use only safe chemicals and reduce impact on both humans and the planet during manufacturing
FIT
Regular Fit
For more information visit our Size + Fit chart
Conditions
Mild
Designed For
Everyday
Features + Tech
Breathability
Moisture Wicking
Quick Drying
Sustainable + Bluesign®
Synthetic Fill
Water Resistant
Extended Sizing
WARNING: Made with PFAS Chemicals. PFAS Plan burton.com/purpose
Imported
Yes
Warranty
Lifetime Warranty
![Men’s Burton [ak]® Helium Stretch Insulated Pant Men’s Burton [ak]® Helium Stretch Insulated Pant](https://www.burton-ca.com/wp-content/uploads/2026/01/men-s-burton-ak-helium-stretch-insulated-pant-1-680x917.webp)
![Men’s Burton [ak]® Helium Stretch Insulated Pant Men’s Burton [ak]® Helium Stretch Insulated Pant](https://www.burton-ca.com/wp-content/uploads/2026/01/men-s-burton-ak-helium-stretch-insulated-pant-1-100x100.webp)




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