Built to handle a range of environments – cold ones – the Thorium delivers serious warmth. Packed with 750 fill-power Responsible Down Standard certified grey goose down, it offers outstanding thermal performance for its weight. Down Composite Mapping™ strategically places Coreloft™ synthetic insulation in areas prone to moisture, the light, durable Arato™ 30 nylon shell has a DWR treatment for water repellency, a bio-derived liner reduces petroleum use, and the insulated adjustable StormHood™ adds even more warmth.
Technical features
Moisture-resistant outer face fabric
Breathable
Lightweight
Compressible and packable
Wind resistant
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
Cuff & Sleeves configuration
Stretchy cuffs
Pocket configuration
Chest pocket with zip
Two hand pockets with zippers
Two internal dump pockets
Integrated features
Includes stuff sack for compact transport
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
Body: 30D Nylon Mini-rip with AC Coating, 53gsm - 100% Nylon
Origin of fabric: JAPAN
Origin of dyeing: JAPAN
May release plastic microfibres into the environment when washing
We are a Seattle, WA based outdoor gear store with a mission to make climbing, backpacking & mountaineering accessible and enjoyable for everyone.
Offer is not valid on sale items or products from Arc'teryx, Garmin, Wahoo, Scotty, or Totem Cams. Additional exclusions may apply.
© 2026, Miyar Adventures
