Arc'teryx Atom Vest Men

Targeted warmth for active days. The Atom Vest insulates primarily around your torso and leaves your arms completely free during hiking, climbing, and other movements. The snug fit works well over a base layer and under a shell.

Breathes better during exertion. The stretch panels on the sides dissipate heat more easily and move smoothly. Especially during long climbs, brisk walking, or varying exertion, you will notice that your torso stays warm without the vest quickly feeling stuffy.

Handy as a lightweight extra layer. The synthetic insulation remains usable when it gets damp, and the outer fabric partially blocks light wind and moisture. On cold, windy days, a jacket with sleeves offers significantly more protection.

Choose this one for extra core warmth with maximum freedom of movement. For real cold, the Atom Hoody makes more sense.