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  • Hydrapak SoftFlask 250ml Water Bottle
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HydrapakSoftFlask 250ml Water Bottle

Item # HPK000N

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Item # HPK000N

Just Keep Moving.

Whether you're running trails, paddling from campsite to campsite, or starting a cross- country cycling trip, the HydraPak SoftFlask 250 keeps hydration and nutrition just a bite away. Designed to carry water, electrolytes, or your own nutrition mix, this flexible flask compresses as you suck in the fluids to prevent sloshing. A soft bite valve makes it easy to rehydrate as you go wherever the adventure takes you.

  • Stay hydrated on all your adventures with this flexible flask
  • Conforms to any pocket and compresses as you drink
  • Durable BPA- and PVC-free TPU construction
  • Bite valve for easy hydration
  • Can be frozen or filled with hot water
Tech Specs
Tech Specs
[body] TPU, [valve] silicone
8.5fl oz
bite valve
Recommended Use
cycling, hiking & camping, running
Manufacturer Warranty

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Soft Flask

  • Familiarity: I've used it once or twice and have initial impressions

This soft flask was great to use for a run and swim combo race. The size was small enough to fit in a wetsuit and store in a back zipper. While running the flask fit perfectly in hand and folded up nicely to store when finished drinking.

Best soft flask

    I ordered and tried out nearly every type of soft flask on the market, and tried them for running, hiking, and inline speed-skating. The Hydrapak Ultraflask is by far my favorite, and I've since ordered multiples, so that I always have a couple of fresh ones on hand. I kind of hate bite valves, but this one seems easier to use. With some soft flasks, it take more work to squeeze out the last third of the liquid. But the design and material of the Hydrapak makes it easy to get all of the water out. The fact that they're top-shelf dishwasher safe is a big deal, as I sometimes use them with hydration mixes.


    Whether it’s trails, rivers or slopes, nutrition is just a bite away. The collapsible, lightweight SoftFlask 250 is easy to fill and even easier to consume with our patented soft silicone bite valve. It can be integrated into a variety of packs, vests, belts, even PFDs. And since it holds 8.5 fl oz of your favorite nutrition concoction, you can go the distance without running out.