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Men's MTB Biking Shorts EXPL 500 - Black
With their built-in foam pad (designed for men), these durable shorts absorb vibrations and prevent rubbing and chafingAdvantages: glove attachment, 2 secure pockets and 2 cereal pockets.
Free shipping over $49
Final Sale: No returns or exchanges
Free returns
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Videos
Product Features

Resistant to wild vegetation
The ”warp and weft” fabric withstands rubbing and snags.
Seat comfort
Ergonomic, pre-shaped, foam pad (13 mm)
Freedom of movement
Special ”relaxed” cut and elasticated fabric for riding comfortably.
Stability
Elasticated waistband with press stud
Moisture wicking
With undershorts that effectively wick away perspiration.
Pockets
Take everything you need in the 4 handy pockets.
Weight
280 g in size L.
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Product Customer Reviews

The sizes of the pants do not correspond to the inner shorts. I bought the L and the exterior is very good but the interior does not fit. The XL has tight and good culottes, but the pants are huge. I'll have to keep looking.
Perfect, just missing a choice of colors.
They are beautiful and comfortable.
Nothing to complain about… consistent with desirable use… excellent value for money.
They could be better. But it's safe
Small size under shorts impossible to put on
Excellent quality-price product, detachable inner pant, ultra comfort.
Pants as such are ok. According to the description, 4 pockets. Usable about only 2. But this is Decathlon's problem overall. They absolutely cannot design pockets. Whether it's trousers for the forest, a jacket for a polo... an acute lack of pockets.
To see over time
Very comfortable. The interior protection can be removed to make simple shorts.
Good product, satisfied for my Fatbike rides, test on very rocky paths and roads.
Excellent value for money
Good resistance to brambles and comfortable. The plus: the pocket that allows you to slip in a smartphone
I would like to buy a product thinking its new and not find a receipt from a previous sale in the pocket!! Obviously they've not been washed so all manner of thoughts went through my head about cleanliness.
The underpants part is very well padded, ensuring great comfort in the saddle. On the other hand, it fits a bit just for me, but I think a size L would have been too big. This is the shorts part that I will criticize the most: the right pocket is too small to put my smartphone (Samsung S20 FE, a very common size these days) + its case easily. It still fits by pulling the fabric a little. But the most negative thing is that this pocket is certainly on the side, but at the back of the thigh rather than in front: the smartphone sometimes hits the saddle when pedaling seated and it is very unpleasant. All in all, my previous Decathlon shorts of this type (with non-removable "fake chamois" briefs) were better designed in terms of pockets, and seemed much more robust (they are still operational after more than 10 years, even if the elastics are dead. I kept the product because I wore the boxers (hygienic reasons), and also because the defects mentioned are not prohibitive. But I would not make the purchase again if I had to do it again.
Additional Product Information
Composition
Main fabric: 88.0% Polyester, 12.0% Elastane ; Yoke: 100.0% Polyester ; Main fabric - Inner layer: 87.0% Polyester, 13.0% Elastane ; Back fabric: 63.0% Polyurethane, 6.29% Elastane, 30.71% Polyamide
Sizing information
Our model is wearing a size M top and size M bottoms.He is 1.83 meters tall.
A second skin with comfort to boot.
The pad has been designed for more regular users looking to progress in MTB. The support foam is also soft but more dense. It protects pressure zones for up to 3 hours. The foam is soft and the stretchy outer layer hugs the cyclist's body so the pad can follow their movements. Foam thickness: 13 mmFoam density: 100 KG/m3Foam firmness: 25 KPa
Pockets
- At the back there's a zip-up pocket for things like keys, credit cards, etc. (14 cm x 7 cm)- There's a zip-up water-repellent pocket on the back of the thigh that's easy to access (even with one hand) and positioned to protect your phone from falls (20 cm x 12 cm).- There are two pockets along your thigh for storing cereal bars (15 cm x 4 cm each).
Keep your gloves to hand
When mountain biking, gloves are often the last thing you put on and the first thing you take off. These shorts have a buckle on the waist so you can keep hold of your gloves without having to rummage around in your pockets. You can snap your ST 100 and ST 500 gloves on them using the press stud to keep them handy at all times.
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.
Product testing
Our engineers always have real riders test all our products in real conditions. These tests round out our lab tests and let us validate all our products before they hit store shelves.
Storage instructions
Store in a clean and dry place.
Origin
Imported
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

Men's MTB Biking Shorts EXPL 500 - Black
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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.