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

Waterproofing: Stretch Breathable Lightweight 20D Nylon/Spandex Ripstop Water-Repellent Coated Fabric
Insulation: 40g Thermacore Stretch
Fit: Regular Fit

Features:

• Yoga Pant Comfort
  The contoured, stretch waist is inspired by the comfy fit of yoga pants.
• Warmth that Breathes
  Low-bulk insulation adds warmth while staying breathable when you're working hard.
• Full of Stretch
  Stretch nylon fabric lets you move easily without feeling restrictive.
• Choice Pockets
  Zippered hand-warmer pockets and a stash pocket add utility and keep choice items close.
• Low Environmental Impact
  Bluesign® approved materials reduce impact on humans and the planet during manufacturing.

Tech Specs:

• Reflective Details
  
• Stretch Binding at Cuffs
  
• Stretch Fabrication
  
• Ultimate combination of high CFM super stretch fabric
  
• and stretch insulation for high output activity
  
• Women’s Specific Stretch Knit Contoured Waistband
  
• YKK® Zippers
  
• Membrane and/or water repellant made without intentionally added PFAS.