Light, warm down jacket shines as an alpine midlayer and versatile standalone. *The Cerium Jacket 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 - Lightweight - 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 Logos & Label Configuration - The colours Black II, Whiteout and Sequoia will have a bird logo on the chest - The colours Black and Arctic Silk will have a bird logo on the bicep Patterning - Articulated patterning for unrestricted mobility Pocket Configuration - Included mini stuff sack with drawcord closure - Two hand pockets with zippers - Zippered internal security pocket Sustainability - Contains materials that meet the bluesign® criteria - Dope dyed uses significantly less water and energy in the dyeing process - RDS (Responsible Down Standard) - 100% of our down is certified to the Responsible Down Standard (RDS) by IDFL (No.TE-99950273) - Feather - This product contains feather not exceeding that allowable by law - PFAS (Per- and polyfluoroalkyl substances) Compliant 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 - Insulation: 850 fill European white goose down - RDS down - Insulation: Coreloft™ 100 (100 g/m²) and 80 (80 g/m²) - 80% recycled polyester - bluesign Approved Material - Self: Arato™ 15 - 100% recycled dope dye nylon - Lining: Arato™ 20 - 100% Nylon - 60% bio-derived material, FC0 DWR - Origin of fabric: JAPAN - Origin of dying: JAPAN - May release plastic microfibres into the environment when washing