Arc'teryx Atom SL jacket Size M Pit to pit 20” Length 26.5” Very nice jacket. No flaws or stains. Super clean. Very lightweight. Packable. • ATOM SL HOODY - The Atom SL Hoody is specifically created to perform when insulation is required, but in a measured amount that suits milder conditions. • FOCUSED VERSATILITY - The Atom SL is designed to handle subtle climate shifts, and each of its fabrics is intentionally selected to manage moisture and provide comfort. • COMPACT INSULATION - 40g/m? Coreloft Compact insulation is highly compressible, insulates if wet, permits airflow, and delivers its superior performance for very little weight. • FUNCTIONAL MINIMALISM - Arc'teryx designers know that a thoughtful minimalism delivers more performance. Created to be so compact and light there's no reason to leave it behind, the Atom SL has only necessary features and uses ultralight fabrics. • TRIM FIT - The trim fit minimizes bulk and layers easily, and the insulation is placed only where it's most needed, in the core, to reduce weight and bulk without sacrificing appropriate thermal performance. SKU 63