Atom LT Vest Men's Size:S Performance first-layer for mountain runs

Performance first-layer for mountain runs and fast-paced pursuits in cooler weather

Alpha Series: Climbing and alpine focused systems | AR: All Round

Clean-fitting jogger made from an organically grown cotton blend fleece

sophisticated lines and technical Alpenex™ fleece performance combine in a mid-thigh length fleece cardigan with wool styling

Down Series: Down insulated garments | SV: Severe Weather

Atom LT Vest Men's Size:S Performance first-layer for mountain runsLightweight, insulated Coreloft vest, designed to preserve core warmth. Ideal as a layering piece for cold weather activities. Atom Series: Synthetic insulated mid layers LT: Lightweight.