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Sale price: Dhs. 275.00 Regular price:
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Sale price: Dhs. 275.00 Regular price:
Model: 8488290

Product Features

MIXED ULTRA TRAIL RUNNING BAG 15 L - BLACK/BRONZE : Designed by our team of enthusiasts, this 15 L bag provides you with an efficient way to carry all the mandatory gear on ultra trail runs from 80 to 300 km.

How do you like the idea of a bag tested at the Western StateⓇ, the Tor des GéantsⓇ and the TempliersⓇ? It's specially designed for ultra trail, with 15 pockets to store all your mandatory gear.



Carry everything you need: 15 L of storage in the front and back pockets.


Keep your gear within easy reach: 8 pockets in the front and 7 in the back.


For longer and lighter trails, your bag weighs only 360 grams.

Anatomic design

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


A bag that stays in place: 2 side straps and 3 adjustable chest straps.

Ease of use

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

Easy hydration

Stay hydrated: 2 L water bladder included, storage for 2 soft 500 mL flasks

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Product Reviews

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992 reviews

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Run vest

Good value - good quality vest

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Great Bag, great feel

I use this for biking not running, so comfort/stability/bouncing while running is not assessed. First thing you notice is it has a premium feel. Everything is just built nicely. For coming with the bladder and the features, I think the price is great for it (and the 10L version is frankly a very good buy). There are really too many pockets for me. Finding stuff is a challenge. But separating stuff is easy. I used it in the rain though, and can confirm, you should bring plastic bags for anything important.

Good running backpack

Light weight and comfortable to wear. Good weight loading and with 15kg capacity it is on the bigger side of running back packs. Plenty of pockets for stashing stuff and with a comfortable fit. Long term use will be the true test of the durability of build.

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Ultra running bag

Just received this This looks the business, excellent looking, plenty of storage, Ive still to try it out on a trail and will repost when Ive used it

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Great running bag

Superb all round bag. Plenty of storage space and very comfy.

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Great bag but the magnetic tube holder fell off

The bag is excellent. Light weight and roomy. Comfortable to wear. However the magnetic tube holder for the water bladder fell off mine. The first week and you cannot buy replacements. Otherwise I love it.

Great bag

Excellent bag; well thought out and constructed. The three straps on the front make it easy to adjust to get a good fit. The back is nicely divided into 4 parts including the inner/inner zipped pocket. The magnetic holder for the drinking tube is really useful. The reservoir is of a good quality and two litres is plenty. My one change would be to have separate side pockets rather than them being joined to the main outside pocket. Bought for a 100 miler but is light enough to become my every run phone holder. Love it :)

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Great bag

Great bag

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Fits well

This bag fits well and just right for taking a small amount of kit for day hikes

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Great bag but beware sizing!

This is a great, comfy pack with handy pockets, flexible hydration options and plenty of storage space, easily comparable to far more expensive options from the big brands and vastly improved over older decathlon running bags. However, the size guide is miles off. I'm 175cm and ~70kg, and going off the belly button waist measurement I would be an XL. I thought that was already ridiculous and was initially going to order an M/L to be delivered but decided to go into shop to try on instead and I'm glad I did. The M/L fitted okay but only on the tightest strap adjustments, and I ended up buying an xs/s, which fits perfectly with adjustment either way. Either size down significantly if you're ordering online or ideally try it on before buying!

That a great vest! A buck fot the price!

Its an amazing piece of kit! Loads of pockets and vents! I didn't use it, as unfortunately its a bit small for me , as i am athletic build, with broad chest and shoulders. Otherwise its a great vest with loads of space and gear loading and caring options. P.S. it looks great and build with a superb material! All around +100!

100% Quality

Again this bag, out performs the many other high end race bags I have purchased and is me go to, loads of space and pockets, fits well and stable 10/10

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Very well thought out bag

I bought this as an upgrade from the 10L black and red bag which I really got on well with and had used for years. You can tell that they've thought about how they can improve the overall design in this newer bag, lots of little touches like the elasticated back stops your tee moving up on a run, the magnet for the bladder pipe, genius, the extra side pockets at the sides, phone pocket is great too. With some reviews they mentioned about it rubbing on your neck, thankfully I seem to just get away with it but can see how this could be an issue for some. Like all these bags, the water bladder is usually the weakest link, designed well but don't seem to last. I think what happens is the water bulges the bottom of the bag which means random areas rub and eventually become holes. However I've not come across a bladder that does last. Other then that amazing bag, well worth the money everything you need for long trail runs and hikes.

15l hydration vest

Perfect in every way, except one big issue. Exactly the right size, the best pack there is in regards to weight, pocket placement and materials except the back neck area comes up too high and rubs neck. Please make this exact pack but with a more scooped next area.

Love this backpack, just one problem.

I’ve used this backpack a lot now! It’s capacity, thoughtful design and multiple pockets are perfect for carrying everything I need when trail running. I have a survival bag, blanket, iphone, power pack, raincoat and trousers, spare gloves and hat, first aid kit, a granola bar, a chocolate bar ... all fits with room to spare. By far it’s greatest achievement is the way it grips your torso but allows you to breath easily. Such a snug but comfortable fit. The three, height-adjustable chest straps are perfect. The ONLY negative is the bladder pack leaked (through the seam at the side) after just 3 x 1/2 marathons. I am hoping they will replace this for me, once the lockdown is relaxed? Aside for the bladder malfunction the pack itself is brilliant and would have received 5 Stars if not for this. I previously used 2 x generations of the smaller Kalenji/ Decathlon backpacks - neither half as good as this one.

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Additional Product informations


Main fabric

  • 100% Polyester

Main lining

  • 26% Elasthane
  • 74% Polyester


  • 22% Elasthane
  • 78% Polyamide


  • 85% Polyester
  • 15% Polyurethane

Choosing your size

Measure your waist size at the belly button:XS/S: 62 cm to 72 cmM/L: 73 cm to 83 cmXL: 84 cm to 99 cm

15 litres and 15 pockets, to keep everything within easy reach while trail running.

There are 8 pockets at the front so you can reach your essentials in a single move:- Pockets for 2 soft 500 mL flasks- Waterproof zipped pocket for your smartphone- Velcro pocket for your gels and bars- Mesh pocket for your rubbishIt also features 7 pockets at the back to store all your mandatory gear: your documents in a protected pocket, 1 survival blanket... And a mesh pocket to keep your rain jacket to hand at all times.

A bag designed to keep you hydrated on trail runs

With space for a 2-litre water bladder at the back (included, attached by hooking on) and 2 front pockets for 500-mL flasks, this bag allows you to carry up to 3 litres of water in total.Considering that you drink an average of 500 mL of water per hour while trail running, that gives you 6 hours of autonomy. Enough to give you peace of mind between aid stations, even in ultra trail!

So, what about the water bladder?

Your bag comes with a 2-litre water bladder included, 38 x 18 cm in size. It's suitable for temperatures ranging between -20 and +40°C, for water: no milk, no alcohol, and no putting it in the microwave ;)The tube is 100 cm long and you can cut it to whatever length you want!

A bag so light you don't even notice it

Available in 3 sizes (XS/S, M/L, XL) and easy to adjust:- you can adjust the height of the 3 front straps- the 2 straps on the side pockets adjust the tightness of the bagResult: Your bag stays so stable you'll forget you've even got it on while trail running.

A design loaded with details, to make your life easy

Your tube is held in pace by a magnetic attachment: it goes back in its place automatically when you let it go- The kangaroo pocket at the back lets you access your rain jacket in one move- Your smartphone is within easy reach, in a waterproof zipped pocket at the front- The 110 dB safety whistle is incorporated inside 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, tells the story behind the 15 l ultra trail bag:

We wanted a bag that'll take you to the end of your trails in complete safety and that can carry all your mandatory gear. We took our customers' opinions into account, for instance adding the smartphone pocket.We designed it for ultra trail, the most demanding category there is. Then we did two series of protocolled tests, which yielded excellent results.We're proud of this product, we spent a lot of time working on its stability, compartmentalization and accessibility.

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