Arc'teryx Thorium Vest (Women's)

The Arc'teryx Thorium Vest is built for cold, high-output environments where reliable insulation matters. Whether you’re layering up for an alpine start or adding core warmth on a winter hike, this women’s down vest delivers exceptional performance without excess bulk.

Filled with 750 fill-power grey goose down, it provides outstanding warmth-to-weight, while Down Composite Mapping™ places Coreloft™ synthetic insulation in moisture-prone zones to maintain performance in variable conditions. The result is a lightweight insulated vest that stays warm even when the weather shifts.

The durable Arato™ shell with FC0 DWR treatment sheds light moisture, while its breathable, packable design makes it easy to carry and deploy when temperatures drop.

For cold mornings, exposed ridgelines, and travel-ready layering, this is a technical down vest you can rely on when it has to work.

Specs

Best Use: Alpine, hiking, trekking, travel
Fit: Regular fit
Outer Fabric: Arato™ 30 nylon
Lining: Arato™ 20 nylon, 60% bio-derived, FC0 DWR
Insulation: 750 fill RDS grey goose down with Coreloft™ synthetic insulation
Sustainability: Contains recycled materials, bluesign® approved fabrics, bio-derived content

Features

• Moisture-resistant outer fabric for changing conditions
• Breathable construction for active use
• Lightweight design for efficient layering
• Compressible and packable for easy storage
• Wind resistant for added protection
• High collar for increased warmth
• Down Composite Mapping™ for targeted insulation performance
• 750 fill-power grey goose down for premium warmth
• Down Contour Construction™ for improved thermal efficiency
• Articulated patterning for unrestricted movement
• Dual lower hem adjusters for a secure fit
• Adjustable, insulated StormHood™ compatible with helmets
• Two zippered hand pockets
• Zippered internal security pocket
• Includes stuff sack for compact transport
• Full front zip for easy temperature regulation