The Atom Lightweigt Vest is the lightest vest from Arcteryx. It can be easily stowed in the backpack to the smallest pack size. So it is always at hand when it suddenly gets cooler in the summer. It can be worn as a midlayer or solo, provides medium insulation and is perfect for early morning runs - so you can enjoy the view from the summit you just climbed without freezing.

The Tyono 20 shell balances breathability and wind resistance, and the Coreloft insulation is lightweight, compressible and warms efficiently. Lightweight stretch fleece side panels provide ventilation for the Arcteryx Atom Lightweight Vest and a great fit.

Features:
• Synthetic Insulation
• Perfect moisture management and breathable
• Small pack size
• Wind resistant
• Ultralight
• Stretchy side panels for comfort and freedom of movement
• Wide collar
• Adjustable drawcord hem keeps out drafts

Fabric: 
100 % polyamide