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Forclaz Trek 100, Convertible Hiking Pants, Women's

Sale price: $39.99 Regular price:

Take the 2-in-1 option and you'll never have to choose between pants and shorts again!

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This product runs small

Sale price: $39.99 Regular price:

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8330073

Product Videos

Product Features

Forclaz Trek 100, Convertible Hiking Pants, Women's is designed for Our team of passionate mountain trekkers has developed these clever pants that convert to shorts to enable you to adapt to the weather

Take the 2-in-1 option and you'll never have to choose between pants and shorts again!

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


Use of a micro Ripstop resistant fabric to prevent tears.

Freedom of movement

Straight cut. Pre-shaped knees to follow your every move.

Quick dry

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


The pants can be converted into shorts whenever you need.


Lightweight and compressible fabric. Approximately 9.2 oz in size 40 (S).


Light synthetic fabric wicks body heat away.

Easy to maintain

Machine washable, does not need ironing.

Easy to maintain

Synthetic machine washable fabric, does not need ironing.

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

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

Product Customer Reviews

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Forclaz Trek 100, Convertible Hiking Pants, Women's,carbon gray
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Excellent value

These trousers are excellent and such great value that I bought another pair. They dry quickly, are comfortable and well fitting.

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A great buy

I bought these in the sale and was really impressed. I started out with them as trousers and by the end of the hike had taken the legs off. Comfortable and warm.

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Wrong sizing

I fit comfortably in UK size 16, but as I wanted to have some extra space I've ordered size UK 18 (which on the website reeds for some reason as EU 44) when I've opened them and try they didn't fit at all!!! They might fit someone with size UK 12!!! I've requested a refund, but it seems they are refunding just the value of the product and not postage (which was £3.99).. they also want me to send the product back on my expense.. I'm not happy at all - it is not my fault that you have the sizing wrong and I shouldn't be paying for any postage at all!

too long

I rebought these trousers as my previous ones were worn out. However, I received a pair which is too long for me. I am 5.5. There was no mentioning of the length of the trousers when I placed the order. So, I need to return them as getting a tailor to take them in would be costly. And I need to find the time to return it!

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Good fit,comfortable.Been waiting for more colours

I wore this pair of trousers on Camino de Santiago last year and have worn them on every single long distance walk since (and I walk a lot). They've been perfect in all weather conditions maybe except heavy rain, highly breathable, lightweight and robust. I visited Decathlon quite recently to check if there were any other colours available such as blue or denim as I'd love another pair, but there weren't. In addition to this I was surprised to learn that the fabric has been changed and now it's much thinner sadly. Why introduce changes when the product is practically perfect?

Great versatile trousers

Wore these everyday on holiday as we never knew what the weather was going to do! Nice fit, lightweight and dried very quickly when wet.

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Good trousers

Nice trousers. It may be worth buying a size up from your usual size.

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Nice fit.

I love wearing these trousers for walking in. They are light and comfortable.

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Nice trousers

Probably a bit too snug around the hip area and a tiny zip which makes pulling them on and off a bit difficult. Nice light fabric

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Walking Trousers

Bought these for my daughter for a World Challenge Expedition to Borneo. Material is great. Looks amazing on. Converts into long shorts easily.

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Great trousers on the slightly small

I got size 12 as though to get them a bit bigger than my regular size as sometimes need to wear underlayer. Be advised, They just fit perfectly meaning the fit might be smaller than a regular 12 other than that really pleased with them

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Fantasitc Buy

Would really recommend these. Have worn now on 2 Caminos on the way to Santiago. Compact, breathable, dry quickly, durable. Fits well. Great to be able to convert to shorts and clever colour coded legs!

Zip off trousers

Bought these for a recent trip trekking in India. Nice fit and good quality.

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Not true to size

Definitely need a size larger than the size stated on the trousers. They're not at all generous. As such, I would benefit from the XL size that is not currently being offered. It is also a shame that store and online can't match their sizing up as if I had been aware I was ordering L-XL, I would have known to order the larger size as well!

Hated the trousers

Much too wide at the bottom of the leg

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Hi Alice,

We are sorry to hear about your experience with the Forclaz 100 modular trekking trouser, and we will pass on your feedback to the brand. The reason the trouser is wide at the bottom is because the product is designed to go over your trekking boots. However, if you believe the product is not suitable for your needs then please do not hesitate to return the product to your nearest Decathlon. Or you can return the product via post by following the instructions on the webpage:

Alec Stratton-Lake | UK Product Trainer
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Size Guide

Size Guide Visual

Additional Product Information


Main fabric

  • 100% Polyamide


  • 100% Polyester cationic

Water-repellent properties info

These pants feature water-repellent areas (front of lower-leg, seat) that prevent water from entering the fabric. Please note that this does not mean WATERPROOF. Water-repellent means that the pants don't get wet too quickly, but they will not keep you dry under normal rainfall. This would require overpants. The water-repellent property can be reactivated by putting the pants in the tumble dryer for 10 minutes on low heat.

Do not forget your overpants in case of rain.

These pants are only partially waterproof. In case of heavy rain, it is advisable to wear waterproof pants on top.

Do not forget your over-pants in case of rain.

These pants are only partially waterproof, in case of heavy rain, think to put on a pair of waterproof pants.



Care instructions

Wash inside out at 86°F May be tumble dried (synthetic programme) May be ironed.

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Size Guide Visual