A warm down vest – it’s a winter necessity. Born from an alpine-proven design, refined to perform as a versatile standalone, the Thorium is the one you reach for before stepping out into the cold. The 750 fill-power Responsible Down Standard certified grey goose down delivers excellent warmth for its weight. Down Composite Mapping strategically places Coreloft synthetic insulation in areas prone to moisture, the bio-derived liner reduces petroleum use, and the light, durable Arato 30 nylon shell has a DWR treatment for water repellency.

Technical Features:

• Moisture-resistant outer face fabric
• Breathable
• Lightweight
• Compressible and packable
• Wind resistant

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
• 750 fill down for premium warmth
• Down Contour Construction allows the down to form to the body for more efficient thermal performance
• Downproof 20D plant-based Arato liner is exceptionally lightweight and reduces petroleum use

Design & Fit:

• Regular fit provides freedom of movement with room for layers
• Garment Centre Back Length: Size S is 23"/58.5cm - Varies by size

Fabric Treatment: FC0-DWR (Durable Water Repellent) finish repels moisture

Hood Configuration:

• Helmet compatible
• Single pull adjuster does not restrict vision
• Adjustable, low profile, insulated StormHood

Integrated Features: Includes stuff sack for compact transport

Patterning: Articulated patterning for unrestricted mobility

Pocket Configuration:

• Two hand pockets with zippers
• Zippered internal security pocket

Sustainability:

• Padding - bluepass Material, recycled content
• RDS (Responsible Down Standard) - 100% of Arc'teryx' 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
• Lining - FC0 DWR
• Shell - FC0 DWR

Zippers & Fly Configuration: Full front zip

Materials:

• Down Insulation: 750 fill European grey goose down - 100% Grey Goose Down (minimum 90% down)
• Lining: 10D x 20D Ripstop - 100% Nylon
• Synthetic Insulation: Coreloft 80 (80 g/m²) - 100% Polyester (80% recycled polyester)
• Body: 30D Nylon Mini-rip with AC Coating, 53gsm - 100% Nylon
• Origin of fabric: JAPAN
• Origin of dyeing: JAPAN
• Origin of Manufacture: BANGLADESH
• May release plastic microfibres into the environment when washing