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Trail Running 10 L Bag Adult

Sale price: $99.00 Regular price:

Want to make nutrition and hydration easy on your trail run? Try our practical, lightweight bag, to carry everything you need and keep all your gear to hand while running.

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Sale price: $99.00 Regular price:

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Model: 8555365

Product Videos

Product Features

Trail Running 10 L Bag Adult | Designed by our team of enthusiasts, this 10 L bag provides you with an easy way to carry all your mandatory gear on ultra trails of UP to 50 miles.

Want to make nutrition and hydration easy on your trail run? Try our practical, lightweight bag, to carry everything you need and keep all your gear to hand while running.

A photo of the Trail Running 10 L Bag Adult in use


Kit yourself out: 10 L storage capacity in front and back pockets!


6 front pockets (nutrition and soft flasks) and 4 back pockets for gear.


More lightweight: your bag weighs on 10.1 oz without the water bladder.

Anatomical design

A bag suited to your needs: choose between sizes XS/S, M/L and XL


A bag that stays in place: 2 Side elastics, 3 adjustable front straps

Easy to use

Easily store gels, bars, smartphone and 2 500-ml flasks in the front pockets.

Easy hydration

Stay hydrated: 1 L water bladder included, storage for 2 soft 500 ml flasks.

Product Lifestyle Image Gallery

Image Gallery

Trail Running 10 L Bag Adult,black 

Trail Running 10 L Bag Adult,black 

Trail Running 10 L Bag Adult,black 

Trail Running 10 L Bag Adult,black 

Trail Running 10 L Bag Adult,black

Product Customer Reviews

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Trail Running 10 L Bag Adult,black
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Great for my long runs

Got this as a replacement for my old Decathlon pack. Great upgrade with more than enough storage

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Good qurality and reasonable price

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Great running pack

This is very comfortable. The only thing is suggest is to buy a bigger size as the sizing is a little on the small side.

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Great running backpack

This backpack is pretty awesome and comes with lots of pockets. I use this for jogging on 2 to 3 hr runs. The only let down is the bladder which I found started leaking after 3 months as it breaks at the crease points.

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great value

Great value and well priced running bag. It is comfortable and light. the bladder is a bit fiddly and i have to squeeze the valve really hard to get water out, but i like that there are lots of pockets to store things. I thought i would have been a size XL but ended up getting a M/L

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Hi Jessie

Thank you for your feedback :)

Your opinion is important to us as we continuously strive for our customer's full satisfaction. Our mission is to make sports accessible to others with good quality while at the same time maintaining very affordable prices and Value for money.

We will be very happy to have you back shopping with us.

Stay safe and take care!

Daniel Khoury

Fitness / Footwear Commercial Director & Buyer


Very light and enough space to take your jacket and other things.

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Handy and light

Handy and light during long runs.

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10 L Trailing Runnong Bag

Comfortable and useful.

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Good for trail running

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Great product

Perfect for long runs

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Trail vest

Very comfortable with lots of compartments!

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Hi Terri,

Thank you for your review! We're so glad to hear that you found the trail vest to be comfortable. We strive to provide the best quality products and customer service, and your feedback helps us to continue to do that. Thank you again for your review!


Hydration Vesr

Very comfortable and stays in place

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Runs way small

I like it but the combined sizes m/l didn't work well for me and xl was too big

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I have actually recommended this vest to many other people since purchasing it. I wear it on all my runs (4xtrail runs per week) and it hasn't rubbed at all. I have put it through the washing machine and it survived well. It is a good size for me because I can carry soft bottles in front, my keys go in the front pocket secure and they don't jangle, I throw a protein bar in the back pocket and put my extra layers (head wrap, gloves, etc) in the zippered section on the back. I was even able to fit my phone in the interior zippered pocket which was a surprise because phones are so big these days. Definitely glad I bought this one because it was a good, affordable starter option.

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Broke after one use

This seemed like a good hydration pack. I went for one run and the next time I went to use it one of the chest straps was unraveled (where it was stitched). I returned it no problem but they didn't have any others in stock to replace it. No idea if this was just a fluke or if this is a common issue

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Additional Product Information


Main fabric: 100.0% Silicone ; Yoke: 74.0% Silicone, 26.0% Elastane ; Back fabric: 80.0% Polyamide, 20.0% Elastane ; Lining: 90.0% Silicone, 10.0% Polyurethane

Choosing your size

New Fit, measure your waist size at the belly button: XXS/XS/S: 24.4” to 28.3”M/L: 28.7” to 32.7”XL: 33.1” to 39”

10 liters and 10 pockets to carry your essentials on a trail run.

There are 6 pockets at the front so you can reach your essentials in a single move:- 2 pockets for 500 ml soft flasks- 4 mesh pockets for gels, bars and collapsible beakerThere's a secure pocket at the back to store your valuables (smartphone, keys, survival blanket), a main pocket to store your clothes and headlamp, and a big mesh pocket to keep your rain jacket always handy.

A bag designed to keep you hydrated on trail runs

With space for a 1-liter water bladder on the back (included, attached by hooking on) and 2 front pockets for 500-ml flasks, this bag allows you to carry up to 2 liters of water in total.Considering that you drink an average of 500 ml of water per hour while trail running, that gives you 4 hours of autonomy. Enough to give you peace of mind between aid stations!

So, what about the water bladder?

Your bag comes with a 1-liter water bladder included. It's suitable for temperatures ranging between -4 and 104°F, for water: no milk, no alcohol, and no putting it in the microwave ;)As to the tube, you can cut it to whatever length you like!

A bag so light you don't even notice it

In trail running, every ounce matters! Weighing 10.1 oz when empty, your bag is truly lightweight. And to fit your personal requirements, it's available in 3 sizes (XS/S, M/L, XL) and is easily adjustable:- You can choose the height of the 3 front straps - Thanks to its 2 side elastics, the bag stays so stable you'll forget you have it on when trail running

A design loaded with details, to make your life easy

Trail running puts you in situations of extreme fatigue. That's why we've designed a bag that makes every move easy.- The water bladder tube is clipped on, so as to remain near your mouth at all times.- The mesh pocket at the back allows you to reach your rain jacket in 1 move.- The 110 db safety whistle is incorporated into a front pocket.

Never run without your poles?

Along with the whistle - mandatory in many races - which is located in the little chest pocket (hence near your mouth!), this bag also features 2 elastic straps on each side to attach your 3-section trail running poles.

Gaëtan, kalenji product manager, introduces his team of trail running enthusiasts:

”For us, it's a matter of pride to design and test our products ourselves. We wanted to make a bag we'd be proud to wear. I took part in 6 or 7 trails last year from China to the OCCⓇ in Chamonix.

Product testing

At DECATHLON, our products are tested by a panel of users under the real-life conditions they were designed for. These tests are organized by a team of dedicated technicians. The product managers, engineers and entire running team use the results of all these tests to develop, create and design technical products that will satisfy our runners.

Storage instructions

Water bladder: never leave water in the bladder for over 24 hours, rinse thoroughly with fresh water and leave to dry before storing.



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
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

  4. laptop-checkout

    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual