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All Mountain Mountain Bike Bottoms - Grey

Sale price: $99.99 Regular price:

Developed using stretch material to allow full freedom of movement when riding hard and descending fast on technical trails, they boast cleverly placed waterproof material in all the right places.

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Sale price: $99.99 Regular price:

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San Francisco, 735 Market St. Options

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Model: 8540538

Product Videos

Product Features

All Mountain Mountain Bike Bottoms - Grey | These trousers are designed for All mountain/MTB rides in cool weather.

Developed using stretch material to allow full freedom of movement when riding hard and descending fast on technical trails, they boast cleverly placed waterproof material in all the right places.

A photo of the All Mountain Mountain Bike Bottoms - Grey in use

Abrasion resistant

Brush up to nature! The light fabric won't get snagged or worn.

Water repellent

Drizzle slides over the fabric's surface, while mud struggles to stick.

Freedom of movement

The fluid, stretchy fabric contains elastane to follow your leg movements


Compatible with our mountain biking protective pads and undershorts.


Two zip pockets (one for your phone and a multi-purpose one)


Vents on the groin and behind the knees


330 g in size L.

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Image Gallery

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Questions & Answers

Product Customer Reviews

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554 Reviews
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Very good pants

I've been eyeing these pants for a while and now ordered them. I have already tested these extensively. I can recommend these MTB pants. Price performance fits this product.

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very good pants but

very good pants, cut, size, material at the bottom of the legs good... however tested this morning during a 4 hour outing with 9 low degrees, fog and 98% humidity, I quickly sweated under the pants... which allows sweating to escape with difficulty I find… to see in colder weather what it gives

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Light and fitted

The material and workmanship are great, but: 1. Quite a high crotch, it can cause pressure when sitting 2. Size on your knees.

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size problem, I have…

size problem, I priced size L and it's too small at the waist, I barely tried it on, I'm thinking of changing it for a size XL. On a daily basis I wear M or L depending on the brand.

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Great pants

Pants look good and fit wonderfully. However, it could be a few cm longer.

Great product that rivals…

Great product that rivals big brand pants, at a very reasonable price. Very flexible, resistant, and waterproof!

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Very good product but...

I've had these pants for over 2 years and I've been doing almost all my outings with them for 6 months. Very comfortable, well cut, not too hot in summer, good heat retention in winter and effective in light rain and snow. Flat, concerning the resistance. In 6 months, it's the 2nd pants that I pierce in several places. In a bit committed Enduro, we tend to scrape branches and stones. On the 2 pants, holes at the back due to the heavy with the saddle and at the front with the vegetation and the ground. With more resistance, this would be the almost perfect pants for the price.

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Not waterproof

no complaints

no complaints

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very good and sturdy...

very good and solid as well as breathable and shape designed for sport so nickel

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Mountain Bike Trousers

Really pleased with theses, and only comment maybe should have gone for the next size up as they are 'snug' . It maybe due to the fact that I like my grub too much. The fir is great and there is plenty of flexibility & room underneath for knee / shin protectors if they need to be worn. High back helps keep vital organs warm. First outing was for around22 miles & they were well comfortable

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Very good

Excellent, I really didn't expect some rockrider pants. recommend

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Great pants for a great price. They are not ideal for rainy weather, but they are quite sufficient for wet conditions.

The cut only disaster

I bought these pants with 1.65m/65kg in size "S" and found out after using them that the cut in the hip area is completely unsuitable for cycling. Far too tight in the crotch, the 2-way width adjustment is out of place, the zipper is too short, but the material is good. maybe suitable for a child's hips or as a women's model, just unwearable and therefore, because it can no longer be exchanged, thrown in the garbage.

Does the job

Does the job

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Additional Product Information


Main fabric: 88.0% Polyester, 12.0% Elastane ; Yoke: 100.0% Polyester ; Membrane: 100.0% Polyurethane ; Pocket: 83.0% Polyamide, 17.0% Elastane

Sizing information

Our model is wearing a size M top and size M bottoms.He is 1.74 meters tall.

Different materials

Rear and shins:triple-layered waterproof membrane fabric.On the thighs and waist: breathable stretchy fabric. Thanks to this fabric, the bottoms are lighter and dry more quickly.

What is a water-repellent fabric?

Water-repellent fabric allows water to slide over its surface and delays absorption. This means that the fabric doesn't become waterlogged, but stays light. Water repellency is obtained by applying a treatment to the fabric's outer surface. HOW DO YOU PRESERVE WATER REPELLENCY?The water-repellent treatment applied to the fabric's outer surface needs to be reactivated throughout the product's life. Our advice:regularly apply a fabric waterproofing liquid (or spray)

The cut

Fitted cut: they are closer-fitting at the waist. The stretchy fabric guarantees ease of movement. Wider on the thighs and knees so you can wear both undershorts and knee pads. They are tighter at the ankle to avoid getting in the way of your pedalling.

Care instructions

You can find detailed info on looking after your mountain bike clothing on our website

Product tests

Our team of product designers based at the B'Twin Village in Lille is continuously working to make cycling more comfortable for our users.Our obsession is to create products that meet the specific cycling needs of our users and eliminate hindrances to a good cycling experience.

Storage instructions

Store in a dry place.



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.

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    Research and development

    delivers high-quality cost-effective products

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    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

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    Minimal retail footprint

    lowers overhead and indirect costs


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