Product Colors and Sizes
Men's Mountain Trekking Modular Trousers - TREK100 - Dark Grey
Product Features

Durability
Reinforced fabric reduces accelerated wear & tear
Freedom of movement
Semi-elasticated waist to avoid compression anywhere. Preformed knees.
Quick drying
A quick-drying, synthetic fabric which provides breathability.
Flexibility
Trousers turn into shorts using a zip around the thigh.
Breathability
Lightweight synthetic fabric that lets body heat escape.
Weight
Lightweight, compressible fabric. Around 370 g in size 36.
Easy maintenance
Machine-washable synthetic fabric, no ironing required.
Product Lifestyle Image gallery
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Product Reviews

I used this trouser to work on our installations, hard work, walking, summer, winter, wearing it every single day for the last two and a half years. Very good product.
It is my companion in every single trip. Light in weight, warm enough!
Waterproof
Very frustrating that Decathlon couldn't care less for anyone with longer than 34 inch inside leg. Nothing you make fits me length wise and I am only 6 foot 2 which is really not so tall. These are annoyingly too short, the same as all your other trousers. Why not make 36 inside leg like other companies, it really is insulting.
These are very comfortable. Dry fast after rain. Light weight. However when ordering online I could not see how I could choose leg length. Being slightly shorter means I need a short leg length. A lot of overhang at the ankles isn’t a major issue but the right length would be better.
Bought for Fishing. Great to have them as short too
Great for work and play , dry quick , little bit of stretch , ample pockets , hard wearing , great value for money : )
As my job entitles for me to be outside for a long period in any weather ( hot or cold) i can rely on these and from many of my customers have had only compliments on how good and professional they look.
Comfortable and well made. Good value.
Nice and light to wear
Very baggy in the legs
As described
This is my 3rd pair and these trousers are great, although I mainly just use them as shorts. Very comfortable, light and quick drying. Loads of pockets which is great just wish the lining of the pockets didn't rip so easily.
This is my second pair of these trousers. They fit really well, have lots of pockets and can turn into shorts. The material is robust - I have slid down scree in them - and it dries quickly. They are also priced very well.
Brilliant product juatthe size was miles out
I am glad to see that you love the product. Unfortunately our sizing can be on the small size but if you return the product to your local store, they will be more than happy to exchange it for the right size.
Christopher Penn | UK Product Trainer
Additional Product informations
Composition
Main fabric
- 100% Polyamide
- 100% Polyester
Sizing info
Sports cut that offers good freedom of movement.84.7 cm trousers inside leg in size 36 (L)26 cm shorts inside leg in size 36 (L)
Pockets
2 hand pockets2 cargo pockets with flap1 zipped side pocket1 zipped back pocket
A score for comparing the products' environmental impact
The environmental impact of the product is calculated over its entire life cycle and using various indicators. A score from A to E is given to help you easily identify products with the best environmental performance by comparing products of the same type (t-shirts, trousers, backpacks).Decathlon is committed to displaying the environmental information of its products.Web: sustainability.decathlon.comExplanatory video: https://youtu.be/8t63KkRwn_8
Additional Recently viewed

Men's Mountain Trekking Modular Trousers - TREK100 - Dark Grey
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Heavy products return policy
If you return a product you will receive a refund for the purchase price plus any applicable sales taxes, less any non-refundable charges.
Decathlon will cover all shipping costs associated with your return except for items excluded from our return policy such as bikes, basketball hoops, snowboards, surfboards, tents, and other larger / heavier items.
Return costs for heavy products:
Weight Thresholds | Shipping within California | Shipping outside of California |
---|---|---|
> 9 lbs | $20.00 | $25.00 |
> 30 lbs | $50.00 | $65.00 |
> 100 lbs | $100.00 | $125.00 |
> 200 lbs | $200.00 | $230.00 |
If you return a product at any of our store locations, we will gladly help you find the best alternative product or refund you on the spot.
