Arc'teryx Cerium Mens Jacket 2026

Proven across a range of alpine missions and backcountry adventures, the Cerium packs small, weighs little, and delivers big warmth. The design – refined for optimal fit and efficiency – utilizes more sustainable materials while delivering the same outstanding warmth-to-weight ratio. Responsibly-sourced 850 fill down – with Coreloft™ synthetic utilized in areas prone to moisture – provides premium insulation. The recycled 15D Arato™ nylon outer is light and durable, the bio-derived liner reduces petroleum use, and the streamlined design is articulated for freedom of movement.

Features & Specs

Technical features

• Moisture-resistant outer face fabric

• Breathable

• Great warmth-to-weight ratio

• Lightweight

• Compressible and packable

• Wind resistant

Collar configuration

• Insulated collar

• Mid height collar seals out drafts, layers easily under a shell

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

• Downproof 20D plant-based Arato™ liner is exceptionally lightweight and reduces petroleum use

Cuff & Sleeves configuration

• Stretchy cuffs

Design & Fit

• Trim fit makes it an ideal layering piece

• Garment Centre Back Length: Size M is 29"/72cm - Varies by size

Fabric treatment

• FC0-DWR (Durable Water Repellent) finish repels moisture

Hem configuration

• Adjustable hem draw cord seals out drafts

Integrated features

• Includes stuff sack for compact transport

Patterning

• Articulated patterning for unrestricted mobility

Pocket configuration

• Two hand pockets with zippers

• Internal zippered security pocket

Sustainability

• Contains materials that meet the bluesign® criteria

• Shell - recycled content

• Lining - bio-derived material

• Dope dyed uses significantly less water and energy in the dyeing process

• 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

• Sterilization Permit Number- PER. NO. PA-8811 (CA)

• Padding - bluesign® approved material

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 & Care

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 dyeing: JAPAN

• May release plastic microfibres into the environment when washing

Care

• Machine wash gentle low

• Tumble dry gentle low

• Tumble dry low with tennis balls

• Do not bleach

• Wash dark colours separately

• Do not dry clean

• Do not iron

• Do not use fabric softener

• Double rinse

• Front load washer recommended

• Use mesh bag for top load washer