Winter climbing midlayer, standalone at camp, packable warmth for backcountry rest periods – the Cerium is alpine proven. Driven by Arc'teryx's obsessive attention to detail, they refined the design, sourced sustainable materials, and kept its exceptional warmth-to-weight ratio. Responsibly-sourced 850 fill down – with Coreloft™ synthetic utilised in areas prone to moisture – provides premium insulation. The outer – recycled 15D Arato™ nylon – is light and durable, a bio-derived liner reduces petroleum use, and an insulated StormHood™ extends protection.

Features

• Moisture-resistant outer face fabric
• Recycled 15D Arato™ outer is light, durable, and coloured with dope dyed yarns
• Downproof 20D plant-based Arato™ liner is exceptionally lightweight
• 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
• FC0-DWR (Durable Water Repellent) finish repels moisture
• Stretchy cuffs
• Trim fit makes it an ideal layering piece
• Articulated patterning for unrestricted mobility
• Adjustable hem cord seals out drafts
• Adjustable hood drawcord with single pull adjuster
• Adjustable, down insulated StormHood™
• Internal zippered security pocket
• Two hand pockets with zippers
• Corded zipper-pulls reduce noise and are easy to grab
• Dope dyed uses significantly less water and energy in the dyeing process
• Contains bio-derived material from 60% castor bean oil, yielding the same benefits as synthetic nylon while reducing our reliance on fossil fuels
• Contains materials that meet the bluesign® criteria and meets the global standard for Responsible Down Standard (RDS)
• Includes stuff sack for compact transport