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Quechua 100, Waterproof Hiking Rain Overpants, Men's

Sale price: $15.00 Regular price: $64.99

Waterproof, breathable, and easy to pull on even with shoes, these overpants will complement your waterproof hiking jacket to keep you dry even during heavy storms!

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Size: Select a size
Size Guide
Sale price: $15.00 Regular price: $64.99

Free shipping over $35

Final Sale: No returns or exchanges

Free returns

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8332514

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Product Features

A photo of the Quechua 100, Waterproof Hiking Rain Overpants, Men's in use

Quechua 100, Waterproof Hiking Rain Overpants, Men's | mountain hikers who want to protect themselves from the rain, snow and wind and keep their bodies dry.

Waterproof, breathable, and easy to pull on even with shoes, these overpants will complement your waterproof hiking jacket to keep you dry even during heavy storms!


8,000 mm waterproof membrane. Fully taped seams.


Hydrophilic membrane (RET=12): limits condensation inside the garment.


Side ventilation zippers: enhances moisture management.

Easy to put on

3/4 length leg zipper: can be pulled on over your shoes.


Weight: 1.5 lbs. in size M.

Product Customer Reviews

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275 Reviews
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Quechua 100, Waterproof Hiking Rain Overpants, Men's,carbon gray
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Great value

These are great trousers are great value. Great fit and quality all for £35. You can’t ask for more.

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Very comfortable absolutely fantastic

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Dear Mr Gawlowski, thank you for your time for leaving us a feedback. We are delighted to hear that you were happy with the hiking trousers. Hope to see you in our store in the near future. Have a good day. Eva, Decathlon Edinburgh
Great Value

I have a few pairs if these,,, great for everything,, I use on my motorbike for enduro as they fit over my knee pods.. totally waterproof.

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Use them for skiing

These trousers are waterproof, breathable, they are listed for hiking, but I bought them for skiing for my teenage sons, my children quickly get hot in normal material, as the sun can be very hot before Christmas and from February on up in the mountains. These trousers are light weight, the material has got a fantastic touch, colour and they have outside zippers up to the side pockets which makes it easy to put them over ski boots, they wear EU size 46 and 48, 46 is L-XL, 48 is XL and they fit perfectly. The only thing is, inside at the bottom of the trousers are no cuffs, it's not possible because of the zip. If you would do sledding in these trousers, snow would come up along your boots, as you have your feet always next to your sledge on the ground. The boys will also wear on those freezing days one of Decathlon's long johns under it.

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Pretty usable, but odd dimensions.

I use these pants mainly for sailing. On the upside. It is pretty sturdy and it slips on and off pretty easily thanks to the side-zippers. The waist and suspenders are well adjustable. The sturdy central closure keeps it all in place. So far during some extended rain they have kept me dry. They also seemed to breath. The pants are intricately lined, the thighs by webbing for ventilation, and the bottom seems intended to keep extra warmth. On the downside. The lower ends of the legs are ridiculously wide. I am really wondering why, because for putting on the pants they are pointless as they have the side-zippers. Maybe it is because of the other shortcomings. They are very short too! And then they get pulled up a lot when bending my legs, probably because of all the lining, and maybe the fabric not being very flexible. I also wondered whether it would be better with less lining as that makes the pants pretty heavy while one can wear some clothing of own choice underneath. Then there are the typical Decathlon not-so-clever-clever-details like loops inside the legs' lower ends. No bother, but they could just be left out.

Excellent overtrousers

Great fit. Great value

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I've worn these while climbing Mount Fuji. Perfect item, all you need is to KNOW what you get. Don't expect a radiator, cause it's not. It will not keep you warm, as it's not intended to. Got some rain in Japan plus few high winds and rain in UK, while fishing. I've never been disappointed by these. As my review targets the product, I have to mention that on the negative side of it the stitching on my product was wrong. Due to this problem, the product ripped apart. I've exchanged it, no problem at all, and thank you Decathlon for that, but I came back to buy the same product and... its price is now higher. As my product was defective, according to the receipt I got, I would expect to get another pair at the same value... I am not afraid to purchase it again. As a Quality Control Manager I know that the product is fine, only that my pair was stitched wrong. I would rise the rating if Decathlon could offer me the same price for it, as the initial price paid. Thank you.

Dear Sir,
I'm sorry to hear about your inconvenience with the Quechua Waterproof Trousers.
I have already forwarded your feedback to our product manager in France.
If you would like to have another one you can return it to your closest store for an exchange or a refund.
Kind regards,
Reka Engel Angyal UK Market Manager Mountain sports DECATHLON

They are going back

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I'm sorry to hear about your inconvenience with this Quechua Waterproof Trousers.
I have already forwarded your feedback to our product manager in France.
Fortunately we don't have a lot of feedback like yours.
You can return it to your closest store for an exchange or a refund.
Kind regards,
Reka Engel Angyal UK Market Manager Mountain sports DECATHLON
Quecha Forclaz 100 waterproof trousers

Wore these for the first time in poor weather conditions with snow and hail coming horizontally and gusting up to 50mph. A joy to wear the braces being a good idea so you weren't adjusting or pulling them up every five minutes. Extremely breathable and keep all the rain out.

Good product

Good product

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Worth a buy.

Very comfortable. Very Easy to wear and remove with shoes on. They are truly waterproof in heavy rains too. I’m using these daily to my office commute on motorcycle for more than a month now and they served me really good. The straps are also comfortable to wear and are detachable as well. Zippers used are premium quality. Pockets are also water proof but I never risked to put my phone or wallet in heavy rains. Since they aren’t breathable, it sometimes gets sweaty inside if you wear them for too long during rain.

Too gud!

It's a comfortable trouser you can rely upon in ur hike in any terrain..or you can even wear it while riding a's a waterproof as well as durable..what can you ask for in this price... unfortunately the product is discontinued...would like to suggest to decathlon to reconsiderr it and tell the company for continuation of the product with new design and more developed feature...

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I'm typing this while I'm still wet from the VERY FIRST TIME of using these in rain for MERELY 20-25 MINUTES on a scooter on open roads at 2.30 am. Outer material is water repellent but these leak very badly from the Crotch and Pocket (both sides) area. It wasn't even raining too heavily. I've always been a fan of decathlon products and recommend to many (last year's hiking jacket is still holding up well) but this time I'm Highly Dissappointed.

Hello Mr Ovais,

Thank you for your feedback on the Forclaz 100 Waterproof Hiking Trouser. We regret the unpleasant experience you have had with the trouser. This over trouser is designed to protect you from rain, wind and snow while you are hiking in the mountain, but I am sorry to inform you that this is not suitable for riding a bike because hiking requires a fabric which stops water but allows breathability to stop the user from sweating. When it is used for bike riding, the water strikes the fabric with higher pressure and enters through the breathability pores which is not the case when you are hiking. However, If you are not satisfied with the product you can visit any of our stores for an exchange or refund.

I remain available if you need any further help.


Varun Nair
Stiching is gone

Quality of stiching thread is really bad

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Hello Mr. Krishna,

Thanks for your feedback on the Forclaz 100 rain trousers. I apologize for the inconvenience caused to you.

To give you an insight on the trousers, these are one of the best from our range of waterproof trousers for a mountain hiker protecting from the rain, wind and snow. Also to let you know, all our products are tested by users on terrains a hiker will encounter on the mountains and also in similar laboratory conditions which allows us to ensure a 2 year replacement warranty on all our products. Here in this case, can you please explain me your usage which will help me understand the issue better and provide you with a solution at the earliest.

I stay at your disposal if you need any further assistance.

Sandeep NAIR

Sandeep NAIR
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Size Guide

Size Guide Visual

Additional Product Information


Main fabric

  • 100% Polyester cationic


  • 100% Polyester cationic

Sizing information and cut

Standard cut. Can be worn over pants, tights or hiking shorts. Please note: Warning, no seams possible because of the side zippers on the legs.


Straps are removable, and length is adjustable by rip-tabs.

Waist size adjustment

With rip-tab + plastic buckle systems on each side of the waist.


2 hand pockets with zipper fastener.

Easy to put on

Zipper along 3/4 of leg length so they are easy to slip on/take off without having to sit down or remove footwear.


Pant cuffs reinforced with highly durable patches, which are tear- and cut-resistant.

Main component

Double-coated fabric.

Technical linings

Micro-fleece inside the waist and on the seat for comfort/nylon around the knees for ease of movement and durability/mesh on the thighs for breathability.

Recommended additional product

Care products: waterproofing spray or liquid in the machine To renew the fabric's water repellent properties and optimize performance throughout the lifespan of your garment.

Waterproof component

We measure a fabric's resistance to water pressure, expressed as a water column of mm (based on the ISO 811 standard). The higher the water pressure withstood, the more waterproof the fabric. Components scoring 2000 mm can resist the pressure from 2000 mm of water (which is equivalent to a rain shower lasting two hours).


This garment has been shower-tested using 26 gallons of water/sqm/hour for 3 hours. This test reproduces the conditions of a violent storm in the mountains.

Component with membrane or coating

Coating: like a layer of "paint" applied on the underside of the fabric to make it waterproof while remaining breathable. It is often less costly than a membrane, and requires a lining for protection. The membrane: is like a very fine plastic film (polyurethane) making the component waterproof while remaining breathable. It has the edge, being more supple, lightweight, durable and often more breathable than coating.

Component breathability

To find out whether a fabric is breathable, we test its evaporative resistance or RET (based on the ISO 11092 standard). The lower the fabric's resistance, the more water vapor generated by physical activity evaporates, and the higher the fabric's breathability. For example: RET < 9 = extremely breathable fabric / 920 = little or no breathability.


In addition to breathable fabrics, Quechua develops high-tech solutions (zippers, ventilation, mesh, etc.) to improve the overall ventilation of its hiking jackets and overpants. These ventilation systems allow you to regulate the temperature inside the garment and also to facilitate the transfer of perspiration generated by the body during physical effort.

Water repellency

A fabric is water repellent when it allows water slide over its surface without seeping in. This prevents the fabric from swelling, and keeps it lightweight, breathable and warm. The water repellent property is achieved by treating the fabric's exterior. This treatment must be renewed throughout the garment's lifetime (recommended after every three washes). All Quechua overpants benefit from a waterproofing treatment.



Product testing

Our design team is based at the foot of Mont-Blanc, in Haute-Savoie (France). All year round, we create and develop products that are beautiful, simple and technologically advanced. These are then ruthlessly tested in the field, as we remain convinced that only through rigorous testing under real world conditions, like the ones you will be using them in, can we continue to provide you with better products than ever.

Storage instructions

Always make sure that this waterproof protective garment is completely dry before storing it.

Care instructions

Wash at 86°F. Use liquid detergent; do not add fabric conditioner. Fasten zippers and hook and loop fasteners before washing. With each wash, renew the fabric's water repellent properties using a suitable treatment. All our Decathlon stores offer a complete range of products specially designed to care for water-resistant and breathable fabrics. These products will help you optimize your garment's performance throughout its lifespan.

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