Steve the Beard
Ultra Runner and YouTube Gear Tester
Slightly longer and slimmer than leading brand, makes easier to access in the vest. Love the different colours, makes a difference for water and fuel and not getting them mixed up. Slightly thicker material which makes them more resistant to punctures.
When you wash them out and stand them on the draining board they stay upright! Nearly half the price too! Would have preferred measuring scale on the back and the teat is not as good as the leading brand in relation to water flow. But overall, what's not to love for nearly half the price!? Harrier's taken the win for me!
Liam Grimley BSc.
These flasks are the perfect fit for my Agile vest and work with perfection every time. I love that they’re built to last and made by a British company that cares for the environment. Liam at Elevate Running. Photo credit Phil Hill @the_phbalance
We guarantee to provide you with the highest quality trail running products and best possible customer service from here in the UK. All of our products come with a 30 day money back guarantee and a 14 day no quibble returns policy. See Our Guarantee and Returns information for more details.
"Yellow slim flask is great quality with no bitter taste. Yellow fold up cup to match. If you can't find sunshine, then be it 💛 First class customers service from Kate. Always support the little guy as they tend to support you more." Graeme
"So, first use of slim bottle today. Verdict... awesome! Did a 50k and this bottle performed tops. I prefer to carry water bottles and plastic ones are too uncomfortable to grip for long times. This is perfect, you can hold it fine, then fold the bottom up as it empties, so there's no sloshing about. No messy tops to faff, just bite and drink, no drips or leaks either. When it's empty just squish it up. Definitely recommended." Ady
"Matchy matchy all the way with my new Harrier soft flask! Love supporting a fellow runner with affordible, great quality kit. Plus you can match them to your team/race colours - winner!" Janine
Mix and match
Our soft flasks are designed to be simple to use and never leak. They compress as you drink to prevent liquid sloshing as you run. We have lots of colours and multiple straw options to mix and match.
Straws are available as short tops or long straws. You can add multiple options to your flask, for example a short top and a long straw. Just select your first one here, then add another from the ‘Individual Straws’ product page.
Race vest fit
Fit race vests that require the tall, slim type flasks. See dimensions below for sizing.
Please contact us if you’d like us to check before purchasing!
They have a sturdy pinch weld design, and smooth material makes them quick and easy to remove from pockets.
Once all your liquid is gone, they can be squashed down to store or easily refilled.
They are made from high quality BPA-free TPU material, there is no nasty taste.
The flexible but sturdy material allows them to stand up and drain easily after washing. The bite valve is also removable for easy cleaning.
Anti-leak and anti-slosh
Fit in race vests that require slim, tall flasks* (we can check if you need help)
Come with long or short straws as standard
Add another straw option to mix and match
Made from light but high quality, BPA free material
Measuring scale on the back
Bite valve removable for cleaning
Come with free sanitiser tablet
*Slim flasks do not fit Harrier race vests, see regular style
Our hydration equipment is made from high quality, BPA free TPU material. We also provide a free sanitiser tablet to soak the bladder overnight before first use. This removes any residual taste quicker so you can hit the trails without lots of rinse and repeats!
Add the sanitiser tablet to the soft flask. Fill with warm water and leave to soak overnight. Next day rinse a couple of times to ensure all sanitiser tablet water is removed.
DO NOT DRINK WATER WITH SANITISER TABLET INSIDE.
Short top – 32g
Long straw – 50g
Bottle length including straw
Short top = 30cm
Long straw = 35cm
100% BPA- free high quality, food grade TPU