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Norrona Fjora Flex1 Heavy Duty Shorts - Women's


The fjørå flex1 heavy duty Shorts are our most durable mountain bike shorts.

The “bombproof,” knee-length flex1 heavy duty biking shorts eat crashes for lunch (even though we prefer none). They’re made in a highly durable recycled nylon material and have a C0 DWR treatment to withstand wind and light rain. The added elastane provides good stretch to increase comfort and mobility. They also offer high UPF protection and excellent tear, pilling, and snagging performance.

Functional features include Custom-fit waist system™ for perfect customization, gusseted crotch for reduced bulk and chafing against the saddle and triple needle stitches in strategic areas increased durability. It has two hand pockets, a zippered, neatly placed thigh pocket, and a silicon grip in the waistband to keep the pants in place. With a higher waist, you don’t have to worry about gaps and buttcracks.

The shorts are compatible with knee protection.

Use and Performance


Single Track Mountain Biking: 6/6

Trekking: 6/6

General Outdoor Adventures: 6/6

Mountaineering: 5/6

Sport Climbing: 5/6

Trail Running: 4/6


Windproofness: 4/6

Waterproofness: 2/6

Insulation: 1/6

Breathability: 5/6

Durability: 6/6

Lightweight: 3/6

Elastic: 5/6

Size Guide in cm

Measures XS S M L XL
Waist 61-66 67-72 73-78 79-84 85-91
Seat 86-91 92-97 98-103 104-109 110-115

Product Details

The model is size M

Technical details

  • Weight 420 gr.
  • Style no: 2221-21
  • Anti-slip inside waist
  • Custom-fit waist system™
  • Double top-stitched seams at strategic areas
  • Full stretch
  • Gusseted crotch
  • Hand pockets with zipper closure
  • High waistband in the back
  • Off-set seams
  • Phone pocket inside right thigh pocket
  • Printed main logotype
  • Two thigh pockets
  • UV protection UPF 50+
  • X-open side zip ventilation with mesh
  • Zippered front fly with snap waist closure



  • More than 50% of synthetic fibers in this product is recycled.