Smarter Than Your Average Fleece. Leave no line untracked. The men's Burton [ak] Helium Power Grid Half-Zip Fleece is your midweight layer for getting after it though the winter or any time you need warmth that lets you keep moving. It's light, full of stretch, and can be worn as a base or midlayer depending on the conditions of the day.

FEATURES:

• Midweight Flat face Knit with fleece grid back [89% polyester, 11% spandex] using HeiQ odour control & thermoregulation technologies
  
• Low-Profile for Easy Layering: A slim fit and stretch fleece make for a low profile that layers easily and lets you move naturally
  
• Stink Less. The sustainable Odour control of HeiQ Fresh keeps it fresh without limiting breathability
  
• Built-in Climate Control. The Living Lining with HeiQ Smart Temp reacts to your body temperature, accelerating moisture wicking when you're hot and retaining warmth when you're cold for balanced comfort all day long
• Grid pattern offers ultimate breathability with superior moisture-wicking and quick-drying performance
  
• Half-zip front
  
• Chafe-free soft-lock seams
  
• Made with bluesign materials: produced with resource-efficient manufacturing processes and using only chemicals that are safe for people and the planet