Jottnar Fjorm Jacket

Jottnar Fjorm Jacket Green, 85 kb
A seriously technical 850 Fill Power hydrophobic down jacket, Fjörm is designed for maximum protection in the most hostile of environments.

Featuring water-repellent down, applied via nano-technology by our US based partner DOWN-TEK™, this expedition jacket maintains loft and insulation far longer, and dries far more quickly, than regular down.  The down is rated at 850 FP with a 93/7 premium goose/duck down ratio for more warmth and less weight. Sophisticated body-mapped fill schedule, box wall construction and oversized zipper baffling minimise cold spots and an ultra-lightweight DWR rip-stop face fabric allows the down to achieve full loft.

Likely wet-out zones at the cuffs, hem and collar are reinforced with Duoregulation™ ADVANSA Thermo°cool® for maximum moisture protection. A belay-friendly two-way zipper and helmet compatible storm hood with mouldable peak add to Fjörm’s credentials as a class-leading expedition down jacket.

Available in both Men's and Women's Models.


  • DOWN-TEK™ water repellent down insulation
  • 850 fill power, 93/7 premium goose/duck down ratio
  • Body-mapped down fill schedule
  • Box wall torso construction for warmth
  • Stitch through arm construction for light weight
    Jottnar Fjorm Jacket Close up, 119 kb
  • Duoregulation™ ADVANSA Thermo°cool ® 120 insulation in wet-out zones at cuffs, hem and collar
  • 20 Denier windproof, rip-stop nylon main body outer with DWR finish


  • Helmet compatible insulated hood with internal pulls
  • Wire stiffened hood brim with fully mouldable peak
  • 1-litre bottle compatible, zipped inner pocket
  • YKK two-way front zipper 


  • Athletic, streamlined, articulated cut
    Jottnar Fjorm Jacket Worn, 46 kb
  • Internal oversized storm baffle with Duoregulation™ ADVANSA Thermo°cool ® insulation
  • Hand warmer pockets with front facing insulation
  • Adjustable, elasticated cuffs with Velcro ® adjusters and Rentex ® cuff liners


  • Rentex ® beard guard
  • Internally protected hood pull cords
  • Corded, glove compatible zipper pulls
  • One-handed, elastic hem drawcord operation
  • Embroidered logo
  • Total weight: 608 g (men's medium)
  • Colours: Black/Charcoal/Orange or Green/Charcoal/Faded Bright Yellow

Down Information

  • Certified non-live plucked
  • Anti-microbial
  • Anti-bacterial
  • PFOA free
  • PFOS free
  • The DOWN-TEK™ micro thin nano-polymer application does not affect Fill Power, loft, measurable weight or breathability; it has an environmentally friendly production process within European directives 67/548/EEC and 1999/45/EC

Read the UKC Review of the Jottnar Fjorm Jacket

For more information visit Jottnar
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