average rating 4.9 out of 5
Based on 104 reviews
  • 5 Stars
    97 Reviews
  • 4 Stars
    6 Reviews
  • 3 Stars
    1 Review
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
97% of reviewers would recommend this product to a friend
Times Used
Rated 3 out of 5
Quality
Rated 4 out of 5
Function
Rated 4 out of 5
Customer photos and videos
104 Reviews
Reviewed by Edward D.
Verified Buyer
I recommend this product
Product Standouts
  • Easy to Wash
  • Easy Access
  • High Quality
I use it for
  • Trail Running
  • Road Running
Rated 4 out of 5
Review posted

It works

It took a couple runs to get used to it. Now I can use it with no problems.

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Times Used
Rated 5 out of 5
Quality
Rated 5 out of 5
Function
Rated 4 out of 5
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Reviewed by Edward
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

It took a couple of runs to appreciate the design, and now I use it consistently.

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Reviewed by Reed P.
Verified Buyer
I recommend this product
Product Standouts
  • No Bounce
  • Compact
  • Easy Access
I use it for
  • Ultrarunning
  • Triathlon
  • Road Running
  • Trail Running
Rated 5 out of 5
Review posted

Pretty Awesome

I've never used an ultraflask before, but purchased two to go with a new OM Gear Vest Pro. Things I love: 1) they collapse as I drink from them, which really minimizes the amount of air coming through the line; 2) they never leave the vest, so I don't have waste time/thought/energy fumbling with them; and 3) they're extremely light weight. One reviewer said the nozzles hit them in the face, but that's easily fixed by tucking the nozzle into the loop on the shoulder strap of the gear vest. Problem solved. The ultraflask is just a really well-designed product. I use Maurten drink mix for my hydration/fuel, and I especially appreciate that the ultraflask is meant to hold 500 mL. It would be great if OM could print a 500 mL fill line on the ultraflask, but I'm smart enough to work around that.

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Times Used
Rated 5 out of 5
Quality
Rated 5 out of 5
Function
Rated 5 out of 5
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Reviewed by Cynthia T.
Verified Buyer
I recommend this product
Product Standouts
  • Easy to Wash
  • High Quality
  • Very Comfortable
I use it for
  • Road Running
Rated 5 out of 5
Review posted

Ultraflask good

I like the ultraflask. I’m just getting g into running long distances so did t know what to expect. The ultraflask very well and is quite easy to use. Also very well made .

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Times Used
Rated 3 out of 5
Quality
Rated 5 out of 5
Function
Rated 5 out of 5
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Reviewed by Nicolas
Verified Buyer
I recommend this product
Product Standouts
  • High Quality
  • Easy Access
  • No Chaffing
I use it for
  • Trail Running
Rated 5 out of 5
Review posted

Years of OCR/trail running, still using them

Impeccable product, survives anything you can throw at them. I have been using the same soft flasks for over 2 years, surviving through 10+ Spartan races. The only problem I had with them is they got moldy, but that was because I did not wash them after every single use (completely taken apart), and let them completely air dry.

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Times Used
Rated 5 out of 5
Quality
Rated 5 out of 5
Function
Rated 5 out of 5
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