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LAOS 4 - Male
LAOS 4 Mountain Trousers

The benchmark in hiking trousers for mountain experts. 3D Flex plus fabric, CimAlp innovation, 100% stretch, durable and ultra comfortable.

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Size Table : LAOS 4
Choosing the right size
In order to obtain the correct size, measure around your waist at the usual place you wear your trousers:
This table takes into account if the item is larger / smaller sized.
Waist size (in): 30 - 32 32 - 33 34 - 35 35 - 36 37 - 38 38 - 39 40 - 41 41 - 43 43 - 44 45 +
Size to order: 36 38 40 42 44 46 48 50 52 54

£ 139.90

- 21 %

£ 109.90
Free delivery on orders over £50
Echanges & retours
Free exchanges and returns
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Garantie 2 ans
2 years warranty


Lifetime Guarantee

These hiking trousers are a must-have among mountain experts, and offer excellent value for money.

For this new generation of one of CimAlp's leading garments, our innovation teams have concentrated on the material, with the use of 3D-Flex-Plus ® technology. This fabric has been developed by CimAlp and offers unprecedented comfort and freedom of movement, thanks to an innovative combination of fibres:

  • 72% bamboo viscose for a soft, silky fabric that regulates both temperature and moisture
  • 25% polyamide for a durable garment, even for the most extreme usage
  • 3% elastane fibres combined with 3D weaving for optimal stretch.
  • DWR water repellent, anti-stain treatment

Meanwhile, we have redesigned the cut at the knees, at the rear and at the hem, which is now made from Schoeller bi-stretch Extreme Cordura® - 260g/m² for exceptional durability where it is needed most. Finally, the overall fit has been redesigned, with a fitted, ergonomic, straight cut to accompany you in your movement. The LAOS 4 will be your loyal companion in all your outdoor activities.


The Difference Is In The Detail

  • Semi-elasticated waistband with fastening
  • 2 side pockets with zip
  • 1 rear pocket with zip
  • 2 pockets with flap on the thighs
  • Drawstring at the hem
  • Schoeller® Extreme Cordura® inserts: pre-shaped knees, rear and hem
  • Ergonomic cut - made for the mountain

The 3D Flex Plus range comes with a lifetime guarantee from CimAlp, backed by over 40 years of experience.

Also available for women: Women's Elga mountain trousers

The Professional's Choice

"Choosing hiking or summer mountaineering trousers is difficult. We want warmth for when it is cool but breathability for hot weather, we want durability yet suppleness and most of all, we want comfort. The LAOS trousers by Cimalp fulfil all these criteria. I have been wearing Cimalp for three years for hiking, glacier mountaineering and mountain climbing. I would recommend it for all these uses."

Marc Weibel, mountain guide www.accompagnateur.net


Insulation Level All Season
Fabric 3D Flex Plus 260g/m²
Weight 600g in size M
Usage Light Hiking, Nordic Walking, Snowshoe Walking, Winter Hiking, Trekking
Technology 3D-Flex
Stretchability 3D-Flex® Fabric : 100% Stretch
Water Resistance Water repellent with anti-stain treatment
Breathability Total Breathability
Wind Resistance Good. Upto 60km/h
UV Protection UPF 50+
Key Features Hard wearing
Trouser Type All Season Trousers

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All Season
Product Reviews
  • Number of Reviews : 24
  • Average Grade : 4.7 /5
  • D. Philippe
  • 5/5
I made my first order from ""cimalp"" more than 20 years ago. This is my 3rd pair of pants from Cimalp, they are comfortable and the colours are really good! They are suitable for hunters / fishermen / hikers / mountaineers.
  • F. ERIC
  • 5/5
Superb, light, comfortable, and breathable. These pants were worn during a two-day trek up a mountain.
  • S. Sebastien
  • 4/5
Good, solid and functional. This is my 3rd pair though I would prefer a slimmer leg size.
  • D. Philippe
  • 4/5
Very comfortable to wear. Perfect for hiking, Nordic walking and biking.
  • G. Sylvie
  • 5/5
very wearable
  • G. Christine
  • 5/5
Used for hiking, nice pants to wear. Passage in the woods, a few trudge into the rocks, do not worry. It remains to be tested in the rain, but the previous purchase of a woman pants for Nordic walking / skiing has shown us that the water repellency is perfect!
  • M. Eric
  • 4/5
convenient front cargo pockets
  • M. Philippe
  • 4/5
Tried once. fine, comfortable, adjustable, ...