Summer weather is warm, until it isn t. So compact and light, there is no reason to leave it behind, Arc'yeryx's lightest Atom is there for you when the temperature drops. Strategically placed at the chest and back, the Coreloft insulation is efficient, light, and compressible. The Tyono 20 outer balances airflow with wind resistance and has a DWR finish to repel moisture. Stretch fleece side panels ventilate and an uninsulated hood adds coverage and buttons out of the way when not in use.PRODUCT FEATURES:*Insulated*Wind resistant*Ultralight*Fleece stretch side panels allow for ventilation*Composite Mapping Technology strategically places each fabric for most effective protection and climate management*Uninsulated, mesh lined sleeves give light protection and regulate temperature*DWR (Durable Water Repellent) finish repels moisture*Drop back hem*Adjustable hem drawcord*Stowable hood*Adjustable, low profile uninsulated StormHood *Two hand pockets with zippers*Articulated elbows*Gusseted underarms for mobility and comfort*Contains materials that meet the bluesign criteria*Contains raw materials made with at least 30% portion of recycled content*Full front zip with chin guard*No Slip Zip front zipper*Custom TPU zipper pulls are easy to operate and glove-friendly*French Regulation: AGEC Law - Article 13 *Weight 230g / 8.1 oz *Fit Fitted *Moisture-resistant outer face fabric *Breathable *Compressible and packable Arc'teryx Women's Atom Lightweight HoodyX000009293