Feel the difference. The women's Burton [ak] Helium Grid Fleece Quarter-Zip brings breathable warmth to just about any cold-weather activity. It's a mid layer. It's a base layer. It's a riding layer that manages sweat and comfort through changing temps and extended efforts with a knack for staying dry and smelling fresh.

• Slim FitSlim fit sits close to the body, with room for the shirt to move with you.
• Stink Less. The sustainable Odor 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.
• Superior four-way stretch
• Low friction and abrasion-resistant finish
• Zippered side/back pocket
• Made with bluesign® materials: produced with resource-efficient manufacturing processes and using only chemicals that are safe for people and the planet
• Lifetime warranty