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was £29.99 -33%


This price includes a recycling fee for electrical equipment and batteries DecathlonDeeeTaxMentionAfterPrice / Since

From 27/12/2019 To

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* From 27/12/2019 and limited stock
£29.99 -%
This price includes a recycling fee for electrical equipment and batteries DecathlonDeeeTaxMentionAfterPrice / Since

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* Sales from to Until end of stock
* From and limited stock
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Want to make nutrition and hydration easy on your trail run? Try our practical, lightweight bag which has a decent 10L capacity as well as a secure strap system and pockets on the front and back. One water bottle is included and there's space for two more flasks, plus compartments for gels and bars.
  • Side and chest straps to keep it in place
  • Very light and comfortable to wear
  • Pockets you can access while you run

Product benefits

Capacity Kit yourself out: 10 l storage capacity in front and back pockets!
Pockets 6 front pockets (nutrition and soft flasks) and 4 back pockets for gear.
Lightweight More lightweight: your bag weighs only 285 g without the water bladder.
Anatomic design A bag suited to your needs: choose between XS/S and M/L
Stability A bag that stays in place: 2 side straps and 3 adjustable chest straps
Ease of use Easily store gels, bars, and two 500 ml flasks in the front pockets.
Easy hydration Stay hydrated: 1 l water bladder included, storage for 2 soft 500 ml flasks.

Technical Information


Measure your waist size at the belly button:
XS/S: 73 cm to 82 cm
M/L: 83 cm to 89 cm

10 litres 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 beaker
There'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-litre 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 litres 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 one-litre water bladder included. It's suitable for temperatures ranging between -20 and +40°C, 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 gram matters! Weighing 285 g when empty, your bag is truly lightweight.
And to fit your personal requirements, it's available in two sizes (XS/S and M/L) and is easily adjustable:
- you can adjust the height of the three front straps
- the two rip-tab side straps adjust the tightness of the bag
Result: your bag stays so stable you'll forget you've even got it on while trail running.

Loads of design features to make your life easier

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 one 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. And the big challenge awaiting our trail team in 2019 is the Diagonale des Fous!"


XS/S: 0.285 kg
M/L: 0.285 kg

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Composition / advice

Main fabric
100.00% Polyester
74.00% Polyester, 26.00% Elasthane
Back fabric
80.00% Polyamide, 20.00% Elasthane
10.00% Polyurethane, 90.00% Polyester
Washing instructions
Machine wash - 30° max - permanent press
Machine wash - 30° max - permanent press
Do not bleach
Do not bleach
Do not tumble dry
Do not tumble dry
Do not iron
Do not iron
Do not dry-clean
Do not dry-clean
Stock advice Water bladder: never leave water in the bladder for over 24 hours, rinse thoroughly with fresh water and leave to dry before storing.
Legal notice Water bladder: complies with applicable food contact standards and does not contain Bisphenol A (BPA).

Our commitments

Test Product At DECATHLON, our products are tested by a panel of users under the real-life conditions they were designed for. These tests are organised by a team of technicians dedicated to this task. The product managers, engineers and the entire running team use the results of all these tests to develop, create and design technical products that will satisfy our runners.
Guarantee : 2 Years

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