Arc'teryxCerium Jacket

Light, warm down jacket shines as an alpine midlayer and versatile standalone. This product was previously the Cerium LT Jacket. An alpine-ready midlayer in cold conditions, a warming layer during rest phases – the iconic Cerium is made for backcountry missions. Featuring a refined design and sustainable materials, it delivers outstanding warmth, packs small, and is feather light. Responsibly-sourced 850 fill down – with Coreloft™ synthetic used in areas prone to moisture – provides premium insulation. The recycled 15D Arato™ nylon outer is light and durable, and the streamlined design is articulated for freedom of movement. As an alternative to down fill insulation, we also offer synthetic fill products, such as the Atom Jacket. Full Product Features Technical features - Moisture-resistant outer face fabric - Breathable - Lightweight - Compressible and packable - Versatile Collar configuration - High collar adds warmth Construction - Down Composite Mapping™ strategically places synthetic insulation in areas where moisture may buildup and down in areas for maximum warmth - 850 fill European white goose down for exceptional warmth-to-weight ratio - Recycled 15D Arato™ outer is light, durable, and coloured with dope dyed yarns Design & Fit - Garment Centre Back Length: Size S is 25"/64cm - Varies by size Integrated features - Includes a stuff sack for easy packability — the stuff sack comes attached within the inner pocket, but can be easily removed by undoing the loop Patterning - Articulated patterning for unrestricted mobility Pocket configuration - Two hand pockets with zippers - Zippered internal security pocket Sustainability - Lining - bio-derived material - RDS (Responsible Down Standard) - 100% of our down is certified to the RDS by IDFL (No.TE-99950273) - Feather - This product contains feather not exceeding that allowable by law - PFAS (Per- and polyfluoroalkyl substances) Compliant - Padding - bluepass Material - Shell - FC0 DWR, recycled content, dope dyed Zippers & Fly configuration - TPU zipper-pulls reduce noise and are easy to grab - Reverse coil centre-front zipper improves durability and creates a streamlined profile Materials - Synthetic Insulation: Coreloft™ 80 (80 g/m²) - 100% Polyester - Down Insulation: 850 fill European white goose down - 100% White Goose Down (minimum 90% down) - Lining: 10D x 20D Ripstop - 100% Nylon - Body: Arato™ 15, recycled nylon microrip - 100% Nylon - Origin of fabric: JAPAN - Origin of dyeing: JAPAN - Origin of Manufacture: VIETNAM - May release plastic microfibres into the environment when washing