Made for runners wanting to carry a few supplies and hydrate easily as they run.
the lightest for carrying your hydration supplies when running!
Sizes guide

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Capacity5L in front and back pockets
Multiple compartmentsRear pocket for 1L bladder (sold with the back) and clothing
Lightweight190g with water bladder
WarantyEssential parts (including water bladder) available: 2 years
Technical Information

water bladder:
Capacity:contenance:1 litre Length: 30cm Width: 16cm hose length: 100 cm.
Safety whistle
110 decibels stored in a small chest pocket
restriction water bladder
-20°C< t°C water
empty weight190g with water bladder
Information / Concept / Technologie
63% polyamide / 37% polyester.

Remove air from water pouch. Shocks while running shake the rucksack and water pouch. If there is air in the water pouch, you will hear the water splashing throughout your run. To avoid this disturbance, make sure that you remove the air when filling the pouch. Turn upside down and let the air go up to the tube, then suck it out. Silence once more!

Stockage tips
do not leave water in the bladder more than 24 hours. Rince well using clean water after use and allow to dry before storing away.

Maintenance tips
rinse the water pouch thoroughly and allow to dry after each use.


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Good buy
Used for 1 week or less
Good buy for the money, however you can't put anymore in it than the bladder really as I found the extra weight meant the chest strap kept slipping up to my neck as there's no waist strap so it does bounce a bit.
Kalenji hydration pack
Bought this pack for an OCR ( Spartan Beast) very light and not bulky at all. I use it every time I go for a run. Awesome!!!
Great Hydration Pack
Used for 1 week or less
I got this a I was running a Spartan Beast and after a race of 5 hours last year I thought I'd go into this years race a little more prepared. I have to say I was so impressed. I hardly knew I was wearing the pack once adjusted and its big enough to store the bladder and a few gels. You could even put in a light top too but I needed to keep the volume down. I wasn't just running but climbing over walls and crawling under barbed wire and it didn't get in the way one bit. Bladder worked well and even has a little pouch to pop the mouth piece in so it didn't get too muddy. For the money this hydration pack is amazing value and I cannot fault it!!
Perfect for a little trekker
Used for 2 to 8 weeks
Although this product is advertised as a running hydration pack we actually purchased it for our 2 & 1/2 year old daughter to wear during a holiday in the Lakes. It was fantastic, a brilliant way to make sure she was hydrated and she loved wearing the back pack, asking for it every day. Brilliant price too
Great hydration back pack
Used for 2 to 8 weeks
Great for carrying more water and very comfoywith 1litre. Not sure how you'd fit in 5 litres though.
Really impressed
Used for 2 to 8 weeks
I bought this on recommendation through RMR. I haven't been disappointed. No leaks, good quality and great price. Handy pocket for phone, gels etc. The icing on the cake would be a phone pocket which is accessible but overall no grumbles.
Not bad bag, bladder is useless
Used for 2 to 8 weeks
I've had two of these now, I'm sure if I'm doing something wrong but the bladder is very weak, cracks easily and leaks. The bag itself isn't bad for the money, but I'd spend extra for a hydration pack that is far more reliable than this.
Good value
Used for 1 week or less
I bought this product to try it out. I didn't want to spend a fourtune on something that turns out I don't like it or wouldn't use. I got on so well with this and no need to buy a more expensive one.
Can you please send me a membership card plz than.
Used for 1 week or less
It's very very helpful. I really like it and I'm enjoying it.
Used for 2 to 8 weeks
This bag is very good value for money and far passed my expectations. I have large phone (iPhone 6+) and just drop it in the main part of the bag with the pouch. No shaking, noise & very comfy. Bargain!!!
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