Compact and superlight, Arc'teryx's lightest Atom vest easily stashes in your pack, ready to grab when summer temperatures drop. Worn as a mid-layer or standalone, it delivers moderate insulation perfect for early morning runs and taking in the view from a freshly bagged peak. The Tyono™ 20 shell balances breathability and wind resistance, and the Coreloft™ insulation is light, compressible, and efficient. Lightweight stretch fleece side panels improve ventilation and hold the fit.

Atom
Versatile synthetic insulated mid-layers with a high degree of weather resistance.

Superlight
Superlight materials and design, emphasizing lightweight and packability over durability.

Synthetic Insulation
Man-made insulation with quick dry times, durability and retains warmth when damp.

Dope Dye
Adding pigment at the polymer level saves water, reduces C02 emissions and increases fabric colorfastness.

Multi-Use
Versatile high-performance designs for diverse activities and conditions.

Features