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Forclaz Trek 100, Convertible Hiking Pants, Men's

Sale price: $34.99 Regular price:

2-in-1 pants: transform into shorts.

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Size Guide

This product runs small

Sale price: $34.99 Regular price:

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8317947

Product Videos

Product Features

Forclaz Trek 100, Convertible Hiking Pants, Men's is designed for Our team of passionate mountain backpackers has designed these clever pants that turn into shorts so you can adapt to the weather

2-in-1 pants: transform into shorts.

A photo of the Forclaz Trek 100, Convertible Hiking Pants, Men's in use


Durable micro-ripstop fabric that prevents tearing.

Freedom of movement

Semi-elasticated waist to avoid compression anywhere. Preformed knees.

Quick dry

A synthetic fabric that provides breathability and is quick-drying.


Pants convert into shorts using a zipper around the thigh.


Lightweight synthetic fabric that allows body heat to escape.


Lightweight, compressible fabric. About 13.1 oz in size 36.

Easy to maintain

Machine washable synthetic fabric, requires no ironing.

Easy to maintain

Synthetic fabric which is machine washable, does not require ironing.

Product Lifestyle Image Gallery

Image Gallery

Forclaz Trek 100, Convertible Hiking Pants, Men's,carbon gray 

Forclaz Trek 100, Convertible Hiking Pants, Men's,carbon gray 

Forclaz Trek 100, Convertible Hiking Pants, Men's,carbon gray 

Forclaz Trek 100, Convertible Hiking Pants, Men's,carbon gray

Product Customer Reviews

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Forclaz Trek 100, Convertible Hiking Pants, Men's,carbon gray
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Hiking pants

Hiking through rough terrain with no tracks and lots of blackberry,full length pants worked well and suffered no damage ,did not try as shorts yet. Pockets were very handy .

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Trekking Trousers

Light Weight, Durable, no colour fade, great value for money

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Terrecking trousers

Sizing small had to return swap size

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Too complicated too many pockets

These pants are too complicated and have too many pockets. Decathlon's MH150 are much better and lighter.

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Best all purpose travel pants

Purchased these in France 2 years ago. Fantastic travel pants for 2 months across Europe. Very well made. Great as shorts or long pants.

Good quality

It is my companion in every single trip. Light in weight, warm enough!



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Would be good but too short

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.

Length issues

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.

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Great For Fishing

Bought for Fishing. Great to have them as short too

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Great for work and play , dry quick , little bit of stretch , ample pockets , hard wearing , great value for money : )

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Would recommend for work gear

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.

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Easy Wearing Zip-Offs

Comfortable and well made. Good value.

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Great trousers

Nice and light to wear

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Baggy bottoms

Very baggy in the legs

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Size Guide

Size Guide Visual

Additional Product Information


Main fabric

  • 100% Polyamide


  • 100% Polyester cationic

Sizing info

Sports cut that offers good freedom of movement. 33.3" pants inside leg in size 36 (L) 10.2" shorts inside leg in size 36 (L)


2 hand pockets 2 cargo pockets with flap 1 zipped side pocket 1 zipped back pocket

A score for comparing the products' environmental impact

The product's environmental footprint is calculated over its entire lifespan using various indicators. A score from A to E is given to help you easily identify the most eco-friendly products by comparing products of the same type (T-shirts, pants, backpacks, etc.) Decathlon is committed to displaying the environmental Information of its products. Web: Explanation video:



Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

Decathlon makes the difference
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    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

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    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual