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Female Look opening image of senja flex1 4" Shorts Olive Night
Female Look opening image of senja flex1 4" Shorts Olive Night
Female Look front image of senja flex1 4" Shorts Olive Night
Female Look side image of senja flex1 4" Shorts Olive Night
Female Look back image of senja flex1 4" Shorts Olive Night
Female Look  image of senja flex1 4" Shorts Olive Night
Packshot front left image of senja flex1 4" Shorts Olive Night
Packshot front image of senja flex1 4" Shorts Olive Night
Packshot back image of senja flex1 4" Shorts Olive Night
Women's

senja flex1 4" Shorts

EUR 109

Color Olive Night


Size (Technical fit)

Size and Fit


Free shipping above 165 EUR.  Free returns.  5 years warranty. 

Our most lightweight and breathable short cut shorts.

These shorts are developed for trail running and will work well for all kinds of outdoor activities.







A stack of folded Norrøna clothing, mostly in blue and black, with several tags visible.  A worker stands near the pile in a factory setting.

Made at MSA YB Ltd., Vietnam

Working together since
2008
Employees
1874
1658 women/216 men
Zero co2 plan
Yes
Energy source
Yes
Fossil fuel
Code of Conduct
Yes
Recycling
Yes
Plastic/cardboard
RSL
Yes
Salary
-
Under update
Organized in union
Yes
Union
Social Audit
Yes
Fair Wear Foundation
HIGG FEM
No
HIGG FSLM
Yes
Not verified
Read more
View all factories

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Product reviews

Rated
4.6
8 reviews
(6)
(1)
(1)
(0)
(0)
Average fit from users
SmallPerfectLarge
Use by reviewer
  • activities.trail_running(7)
  • Outdoor/Hiking(5)
  • Sportswear(1)
Review Summary
Updated May 7, 2026

The Senja flex1 4" Shorts are a highly recommended option for long-distance running, particularly ultra-marathons and half-marathons, as well as general trail running and walking.

Standout Features: These shorts are praised for their exceptionally lightweight and airy design, offering excellent airflow and quick-drying properties. They feature a smart pocket system, including a zippered pocket in the waistband that securely holds a phone and a smaller pocket for keys. The material is noted for being strong, durable, and abrasion-resistant, with reviewers specifically appreciating the absence of a liner, which prevents chafing.

Fit and Comfort Level: Comfort is a recurring theme, with users describing them as "very comfortable" and "super comfy." However, the fit can be a bit nuanced. While some find the fit "perfect" and "flattering," others report issues with sizing, finding themselves "in between sizes." A significant criticism is the low-rise waist, which can sit uncomfortably on "love handles" for those without a "six-pack," leading to an unflattering look and a desire for a higher or wider waistband.

Criticisms and Areas for Improvement: The primary criticism revolves around the waistband design and rise. The low-rise cut and potentially narrow waistband are not universally flattering or comfortable, especially for individuals who prefer more coverage or a different fit around the midsection. Sizing can also be tricky, suggesting a need for more precise sizing guidance or perhaps a wider range of fits.

Recommendation: The Senja flex1 4" Shorts are highly recommended for dedicated runners, especially those engaging in long-distance events like ultra-marathons and half-marathons, as well as trail runners and walkers. They are ideal for individuals who prioritize lightweight, breathable, and durable shorts without a liner, and who appreciate secure pocketing for essentials. This product is best suited for those who are comfortable with a lower-rise fit or have a body type that accommodates it well.

5 MONTHS AGO
lightweight shorts  
5
MarleneMSalzburgOutdoor experience: Advanced
I love this short for running, it has enough pockets for the phone and your key.
Activities: Hiking, Trail running
Yes, I recommend this product
LAST YEAR
Senja flex1, comfort  
4
anonymousBergenOutdoor experience: Advanced
I bought this a few weeks ago. It is very comfertable, and is super nice for trail running. Feels light! However, I am in between sizes, and small is a little big, and the xs was too tight. I am uasally xs or smaller.
Activities: Trail running
Yes, I recommend this product
LAST YEAR
Comfy & sexy  
5
NanzTrondheim NorwayOutdoor experience: Novice
Got a pleasant remark from a runner about my shorts while running my very first half marathon :)
Activities: General outdoor
Yes, I recommend this product
LAST YEAR
A bit loow  
3
Elib74ÅlesundOutdoor experience: Intermediate
Love the color og this with the matching vest. The widht around legs are good, smart pocket that holdes the phone tights enough whole Rynning and there is alspna small pocket for keys. On negative side: if you do not have a sixpack this will stop and thighten right on your love handles, not flattering. Would have preferred a higher waist or much wider waistband.
Activities: Hiking, Trail running
Yes, I recommend this product
LAST YEAR
Senja-serie  
5
MaritaasenOutdoor experience: AmbassadorPro
I bought this and the vest and used it on Lofoten Skyrace today. I loved them both!! My New competition outfit👌 Perfectly light👌
Activities: Trail running
Yes, I recommend this product