Details
Winter climbing midlayer, standalone at camp, packable warmth for backcountry rest periods – the Cerium is alpine proven. Driven by our obsessive attention to detail, we refined the design, sourced sustainable materials, and kept its exceptional warmth-to-weight ratio. Responsibly-sourced 850 fill down – with Coreloft™ synthetic utilized 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.

CERIUM
Streamlined, minimalist and lightweight technical down insulation. High warmth to weight ratio.

ESSENTIALS
Versatile high performance designs for diverse activities and conditions.

DOWN INSULATION
Highly efficient natural insulation that compacts well and offers excellent warmth to weight.
- Wind resistant
- Moisture-resistant outer face fabric
- Breathable
- Great warmth-to-weight ratio
- Lightweight
- Compressible and packable
- 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
- Stretchy cuffs
- Trim fit makes it an ideal layering piece
- FC0-DWR (Durable Water Repellent) finish repels moisture
- Adjustable hem cord seals out drafts
- Adjustable hood drawcord with single pull adjuster
- Helmet compatible
- Adjustable, down insulated StormHood™
- Includes stuff sack for compact transport
- Articulated patterning for unrestricted mobility
- Internal zippered security pocket
- Two hand pockets with zippers
- Contains recycled nylon
- Contains materials that meet the bluesign® criteria
- 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
- Meets the global standard for Responsible Down Standard (RDS)
- Corded zipper-pulls reduce noise and are easy to grab
- Full front zip
Materials
- Self: Arato™ 15 - 100% recycled dope dye nylon
- Lining: Arato™ 20 - 100% Nylon - 60% bio-derived material, FC0 DWR
- 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
Weight: 335g / 11.8 oz
Care
- Machine wash in warm water (30°C).
- Do not use fabric softener.
- Tumble dry on low heat.
- Do not iron.
Videos
Arctyrex Down Care
Part Numbers
Option | UPC | Store SKU |
---|---|---|
Black Sapphire / Medium | 686487866270 | JAC549022302 |
Black Sapphire / Large | 686487866263 | JAC544640772 |
Black / Medium | 686487866188 | JAC485482022 |
Black / Large | 686487866171 | JAC483190442 |
Black / X-Large | 686487866201 | JAC482516392 |