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SoftFlask 150ml Water Bottle

4.5 out of 5 stars
14 Reviews

Out of Stock

Don't worry though, we have a lot more Water Bottles & Cages in stock than that.

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Why We Like the SoftFlask 150ml Water Bottle

Designed to carry gels, water, electrolytes, or our own nutrition mix, this SoftFlask compresses as we suck in the fluids to prevent sloshing as we move. The twist cap prevents leaking when you shove the flask into your vest or pocket so you'll have everything you need to go the distance.


  • Give your body the energy it needs with this soft flask
  • Flexible BPA- and PVC-free construction collapses as you drink
  • Gel cap twists closed for a leak-proof seal
  • Can be frozen or filled with hot water
  • Item #HPKE00E
150ml (5oz)
6.5 x 2.8in
Claimed Weight
Manufacturer Warranty

Overall Rating

4.5 based on 14 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 1 reviews
3 Stars - 1 reviews
4 Stars - 2 reviews
5 Stars - 10 reviews

What do you think about this product?


Selecting an option will reload the available reviews on the page
5 out of 5 stars

November 14, 2022

Monkey Juice on endurance rides

50% maple syrup, 25% molasses, 25% honey. Right jersey pocket in a SoftiFlask. Cheaper than goo and jellies.

Charles Darwall

Originally reviewed on HyrdraPak LLC

5 out of 5 stars

August 29, 2022

Bought 150 for the twist top, 250 for the size...

I have a "naked" belt and wore 2 x 250 bottles with this twist top so that the tops were back by my tailbone (to leave my front and sides clean for obstacles where I pivot across my pelvis). I'd REALLY like 2 x 500 bottles (like the SoftFlask™ WMX - 500) that I can put this 28mm twist top on, but those holes are 42mm, so looks like I'm stuck at 250, which is too bad as I have room in both sleeves for a longer soft flask (and bite-valves leak in this belt). So, please make a LONGER (not fatter) bottle at 500-600 ml. Let it use this small 28mm twist top. (Leave the valve SMALL so that it isn't obtrusive against my tailbone / back.) Make the twist valve twist the opposite direction of the bottle cap (can be overcome currently by holding the bottle cap instead of the bottle while unscrewing, but it takes a while to learn this automatically and people might give up on it before then... and I did get some honey water down my front more than once). Yes, I could take 4 in the belt, but managing them is messy and refilling takes time with all the lids. I just need 2.


Originally reviewed on HyrdraPak LLC

2 out of 5 stars

June 10, 2022

Close, but needs a 2.0 version

Great size. Although the twist open being the same way as the open for the entire container stinks. Wore my drink on my shirt


Originally reviewed on HyrdraPak LLC

5 out of 5 stars

February 8, 2022

Small and Portable

Very small, and easily compacts to fit in even a shirt pocket.


Originally reviewed on HyrdraPak LLC

5 out of 5 stars

September 2, 2021

Soft Flask

SO much easier to deal with than the packs! ⭐️⭐️⭐️⭐️⭐️


Originally reviewed on HyrdraPak LLC

5 out of 5 stars

August 28, 2021

Gel flask

I ordered this to replace prior Gu gel hydra flask. Like the new one better. Will be great for my next HIM race.


Originally reviewed on HyrdraPak LLC

5 out of 5 stars

August 16, 2021

Great for gels, or 5ks "mouth rinse"

Great for homemade gels. Holds a lot more than expected, and can hold a bit of "mouth moisture" for high intensity training runs, where keeping your mouth moist can make it more enjoyable, without adding much counter-weight.

B Gaucher

Originally reviewed on HyrdraPak LLC

5 out of 5 stars

September 28, 2020

Perfect Size

This item is perfect for front pocket on my hydration vest. I use it for my electrolyte fluids. Exactly what I needed!


Originally reviewed on HyrdraPak LLC

5 out of 5 stars

September 11, 2020

Maple syrup dispenser

Love it! Easy to fill, refrigerate if I didn’t finish all of it, simple enough to clean. I use maple syrup, ginger, and salt and everything rinses clean with soap and hot water. I’m indifferent to the screw top. All the minor complaints about it twisting the wrong way or slipping are valid, but manageable. A bite valve might be nice, but if a little gel leaked out each time it’s was unintentionally squeezed, it would be a pain. I think Hydrapak got it all right here!


Originally reviewed on HyrdraPak LLC

3 out of 5 stars

September 9, 2020

Great flask! Needs different top

Love my soft flask to fill with my own energy gel for training. However, it should really come with an option of twist top or bite valve. The twist top is boderline dangerous to use on the bike (hard to get open one handed). I bought the bite valve separate and that combo is perfect.

Originally reviewed on HyrdraPak LLC