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Forclaz Trek 100, Modular Hiking Tights, Men's
Pants or shorts... why choose? These pants can be turned into shorts and enable you to face all situations!
Free returns
Free shipping over $35
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Videos
Product Features

Durability
Ripstop main fabric and very durable panels on the knees and buttocks
Freedom of movement
Semi-elasticated waistband with soft lining fabric. Preformed knees
Ecodesign
30% less CO2 emissions thanks to a clean dying process
Quick dry
A synthetic fabric that provides breathability and is quick-drying.
Water repellent
The front and rear reinforcement zones are water-repellent.
Breathability
Lightweight synthetic fabric that allows body heat to escape.
Weight
Lightweight, compressible fabric.Pants weigh approximately 11.6oz in size 36(L).
Easy to maintain
Synthetic fabric that can be machine washed; does not require ironing.
Product Lifestyle Image Gallery
Image Gallery






Product Customer Reviews

Nice pair of trousers but the colour is nothing like the websites photo. Hardly any difference in the patches to the trouser which was disappointing as this was the reason for purchasing this style. It has been mentioned several times in reviews and yet the photo has clearly not been updated!
Trousers feel lightweight and have the option for unzipping into shorts. Only issue is size. The 32 medium is good for length however are tight around the crotch meaning they’re not comfortable when crouching down of lifting knee up. I’d say go up a size. Hopefully I can exchange these to a bigger size as they do seem very good!
I would buy them as any Emergency to keep you going but just not as good as the 500, but would do the job
Often when I buy "leisure" trousers, they are too baggy for me, even if the waist is the corect size, but these are a perfect fit. There is enough room for movement, but not at the expense of looking like you're wearing a sack. Definitely a good buy for the price.
Great product, good fit, value for money
Waste of money, highly not recommending this product to anyone.
Hello Rajiv
Thank you for taking out time to give your valuable review. We are sorry that you were not satisfied with the product. However, from your review, the main issue with the product is not clear. Please write back to me with the issue you faced with the product so that we can provide you the best possible solution.
Gokul BHANDARI
Product Trainer and Passionate Backpacker
Difference in the colour Seems nice
Osaam
Nice
Very nice product
Color of the water proof patches should be more dark or black. It looks like single colored trouser. Waterproof patches are not visible especially in pictures. Please make it proper dual colored trouser. Also the fabric is very thin, it's good for summer though. Quality is definitely good. Trouser was too lengthy, I had to go to tailor to alter it and I'm not happy with color.
Ok
Great Product
Does not look as in the photo shown
Good
Size Guide

Additional Product Information
Composition
Main fabric
- 100% Polyamide
Yoke
- 100% Polyamide
- 100% Polyester cationic
Eco-design
For the main fabric, we decided to use a more environmentally friendly dyeing process Fabric dyeing uses a lot of water and also produces waste water from the dyeing baths. To reduce the environmental impact, we chose a dope dyeing process that integrates color pigments during the yarn manufacturing. We reduce CO2 emissions by 30% compared to the former model.
Resistance
To guarantee unfailing durability, on the knees and buttocks, we use light fabric (5.3 oz/sqm) that is very durable, made from 200 denier polyamide yarn (on the warp) and 320 deniers (on the weft). Indestructable!!
Water-repellent properties info
These pants have water-repellent inserts (knees, buttocks) that enable the water to slide off the surface of the fabric. Please note that this does not mean WATERPROOF. The water-repellent property prevents the pants from getting wet too fast but will not keep you dry under steady rain. For this, we recommend that you wear over-pants such as the Trek 500 (ref. 8493660). Water-repellency can be reactivated by tumble drying the pants for 10 min on low temperature.
Functions
To make it easy to identify the bottom of the legs, we have used a red zipper pull on the right leg and gray on the left. You will not mix them up!! Partially elasticated ankles to better fit your backpacking shoes!
Sizing info
Sports cut that offers good freedom of movement. 31.1" pants inside leg in size 36 (L) 9.4" shorts inside leg in size 36 (L)
Maintenance:
We recommend that you always wash the pants with the bottom of the legs zipped to ensure that the color washes out evenly!
Origin
Imported
Product testing
These pants have been tested and validated in the field in real conditions. It was worn for 5 weeks in spring 2019 by several people who went backpacking in the Canary Islands for 2 weeks, followed by 3 weeks on the GR10 route in the Pyrenees.
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
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State-of-the-art production processes
minimize manufacturing costs
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Optimized supply chain
reduces retail prices
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Minimal retail footprint
lowers overhead and indirect costs

Forclaz Trek 100, Modular Hiking Tights, Men's
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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.