Shed layers for the climb. Add layers for the descent. The Men's Burton [ak] Helium Stretch Vest is a lightweight layer that can do it all. It breathes while you're headed uphill and offers needed insulation under your shell on the descent. When the sun shines and the temps rise, it packs into its own pocket for easy stowing.

Details:

• Super Packable: It's so light and packable, there's no reason to leave it behind.
• Full of Stretch: Stretch nylon fabric lets you move easily without feeling restrictive.
• Warmth that Breathes: Low-bulk insulation adds warmth while staying breathable for hiking or skinning.
• Low Environmental Impact: Bluesign approved materials reduce impact on humans and the planet during manufacturing.
• Thermacore stretch [40g] insulation; [ak] DWR coating
• Lifetime Warranty