Go light or go home. This midweight insulator breathes to vent sweat and keep you warm and on the move in the mountains.

The men's Burton [ak] Helium Hooded Stretch Insulated Jacket delivers breathable warmth in a lightweight, pack-friendly design for backcountry missions. Its stretch fabric lets you move naturally while keeping things light and breathable. It's the midweight layer you can wear on the uptrack when it's cool and breezy or under your shell to stay warm on the descent. When the sun shines and the temps rise, it packs into its own pocket for easy stowing.

It's so light and packable, there's no reason to leave it behind.

Stretch nylon fabric lets you move easily without feeling restrictive.

Low-bulk insulation adds warmth while staying breathable for hiking or skinning.

Bluesign® approved materials reduce impact on humans and the planet during manufacturing.