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Forclaz Trek 500, Convertible Hiking Pants, Men's

Sale price: $40.00 Regular price: $59.99

2-in-1 pants convert easily and quickly into shorts

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Size: Select a size
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This product runs small

Sale price: $40.00 Regular price: $59.99

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Final Sale: No returns or exchanges

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8501895

Product Videos

Product Features

Forclaz Trek 500, Convertible Hiking Pants, Men's | Our team of backpacking enthusiasts has developed these pants to allow you to easily adapt to changes in weather

2-in-1 pants convert easily and quickly into shorts

A photo of the Forclaz Trek 500, Convertible Hiking Pants, Men's in use


Resistant fabric panels on the areas most exposed to friction

Freedom of movement

Stretch fabric in areas used during movement

Quick dry

Use of breathable synthetic materials that dry quickly


Turns into shorts without having to remove your shoes using the side zippers

Water repellent

The front and rear reinforcement zones are water-repellent


These pants weigh about 1 lb in size 44 (L)

Easy to maintain

Machine-washable synthetic fabric, non-iron

Product Lifestyle Image Gallery

Image Gallery

Forclaz Trek 500, Convertible Hiking Pants, Men's,brown 

Forclaz Trek 500, Convertible Hiking Pants, Men's,brown 

Forclaz Trek 500, Convertible Hiking Pants, Men's,brown 

Forclaz Trek 500, Convertible Hiking Pants, Men's,brown 

Forclaz Trek 500, Convertible Hiking Pants, Men's,brown 

Forclaz Trek 500, Convertible Hiking Pants, Men's,brown 

Forclaz Trek 500, Convertible Hiking Pants, Men's,brown

Questions & Answers

Product Customer Reviews

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Forclaz Trek 500, Convertible Hiking Pants, Men's,brown
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Great trekking zip offs

I loves these pants! I have several pairs of the full shorts version, two of the full pants, and one pair of these zip offs that I use on long distance treks. I almost always prefer hiking in shorts unless its actually cold, but in camp, or on cold mornings as I hit the trail its nice to have the legs to zip on. They're durable, have well thought out pockets, fairly lightweight, and dare I say even a bit stylish-- people always ask me about them when they seem me wearing them! My only quibble, and its a minor one, is that I sometimes find the zippers for the legs a bit finicky. Perhaps its my problem and I struggle with zippers, or perhaps its a slight defect in my particular pair, but these ones can be especially finicky, though ultimately I can get them zipped back on. Nonetheless I highly recommend these pants, especially for the price!

Great trail hiking pants. Comfortable.

Very comfortable. I have only used them on trails so far so not sure how well stickers/thorns will do. The fly opening is small,

Amazing hiking pants

They are crazy comfy for whatever you are doing. I have tested them hiking in Shenandoah and were perfect, good fit (elastic), four big pockets with zippers, clip buckle belt, water repellent. Whenever it is too hot and the path is clear, it is super easy to turn them into shorts. My new favorite hiking pants!

To tight in the crotch

When buying these pants I listened to all the other reviewers about how tight the legs are, I have chicken legs so the legs fit fine, very slim fit though. However the problem is the crotch, these feel like pants for women. There’s zero room for the boys , and it’s just plain uncomfortable. The zipper is very short in length and the pants crotch is cut too short. It’s a real bummer cause I bought 2 pairs and can’t return cause I tested them out. Would not recommend unless you like to sag your pants.

Great value

Love them

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Hi Shirin,

Thank you for reviewing our men's convertible trek pants.

We are glad to hear that you are happy with them and we hope you have great hikes this summer!



Communication Leader, Décathlon Ottawa

Comfortable and convertible

Shorts and pant combo ideal for most conditions

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Length too long

Why do manufacturers assume that larger waist size means longer inside leg? Other manufacturers such as Brasher and Craghoppers offer a range of leg lengths. I love these trousers but they only come in 34" leg size. Due to the Zips and draw cords it is sadly not possible to hem them. Dissapointed

Great product

Bit oversized but still a great item

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Comfortable pretty windproof

Not too bad but not particularly cheap. Time will tell

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Excellent walking trousers

This is my 2nd pair of these trousers. Comfortable. Plenty of pockets although no back pocket. Lasting well. Use for hill walking but fine for everyday use also.

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Love them

Love these so much I wear them allot even when not walking or hiking

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Finally I've found a pair of zip off sports trousers that fit really nicely. They're well made too.

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Great trousers - very comfortable

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Versatile trousers

Decent quality. Early days but should take some wear. Perhaps the best value is at a rung below this pricepoint?

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Good outdoor trousers

Good strong lightweight outdoor trousers, dry quick when wet. Found them great on Dartmoor

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Size Guide

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Additional Product Information


Main fabric

  • 100% Polyamide


  • 12% Spandex
  • 88% Polyamide


  • 100% Polyester cationic
  • 85% Polyamide


  • 15% Spandex
  • 85% Polyamide

Hybrid structure

Pants designed with 2 different components: - a durable fabric (7.3 oz/m²) with stretch in areas that need protection from rubbing (seat, front of the ankle) and during movement - lightweight and breathable fabric (4.4 oz/m²) on the rest of the pants


2 zipped hand pockets 2 zipped thigh pockets (and 1 mesh pocket on the inside of the right pocket) Elastic tightening system at the ankle for a perfect fit over the shoe. Pants sold with a belt

Water-repellent properties information

These pants have water-repellent inserts (front of the ankle, seat) that let the water slide off the fabric's surface. 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-repellent properties can be reactivated by tumble drying the pants for 10 minutes on low temperature.

Sizing information

Straight cut and use of stretch fabric in the right areas guarantees high comfort levels when moving around. Choose your usual size. Inside leg of the pants: 32.8" in size 44 (L) Inside leg of shorts: 10.8" in size 44 (L) Width of pant hem: 8.4" in size 44 (L) Width of shorts hem: 10.4" in size 44 (L)

What about maintenance?

We recommend that you always wash the pants with the bottom of the legs zipped up to make sure that the color washes out evenly!

A score for comparing the products' environmental impact

The environmental impact of the product is calculated over its entire lifecycle and using various indicators. An overall ABCDE score is given to help you easily identify products with the best environmental performance by comparing products of the same type (T-shirts, pants, backpacks, etc.). Decathlon is committed to displaying the environmental information of its products. For more information:



Product testing

These pants have been field-tested in real conditions. They were worn for 5 weeks by several testers who undertook the Grande Traversée des Alpes (GTA) in late spring 2017.

Superior quality. Unbeatable prices.

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