Description The GU Flask was designed in collaboration with the hydration-solutions experts at Hydrapak to make an easy-to-use reusable vessel for GU's assortment of ride gels. This soft flask makes contents easier to disperse than older hard flasks, and the high-flow nozzle is more convenient and less messy.
Holds 5 servings. Features printed measurement markings for convenient dosing.
Reviews Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
Good size and texture cap can screw loose
A nice option to other flasks, well made and easy to squeeze everything out. Only complaint is the cap screws off to open valve, so you gotta pay attention. I have another with a bite valve that solves this issue, still a good product.
Was this review useful to you?
Yes /
No Thank you for your feedback.
Reviewed 12/19/2018
by Anonymous
Cycling Enthusiast
Kansas
Value Rating
Overall Rating
Poor flow (using GU roctane) in cold conditions
Purchased for gravel riding (to minimize waste and optimize gel use) but nozzle flow required concentrated pressure which distracted from riding and did not provide adequate quantity. Flow was negligible when temps were 45 deg or lower using GU roctane.
Was this review useful to you?
Yes /
No Thank you for your feedback.
Reviewed 7/19/2018
by fogmaster
Cycling Enthusiast
Half Moon Bay, CA
Value Rating
Overall Rating
Love this product
I love this dispenser, it is a little hard to clean out but it the best way to dispense your Gel. Buying the Gel by the larger container vs. the packets is really good way to save packaging, pay less for the gel and not cut your mouth on those metallic packets. Plus you can swallow a little or swallow alot and no messy packet to deal with later.
Was this review useful to you?
Yes /
No Thank you for your feedback.
Reviewed 4/9/2018
by kevin
Cycling Enthusiast
Dallas, TX
Value Rating
Overall Rating
0 of 1 customers found this review helpful.
Good not Great
Have used several times on my training rides. I make my own GU. Issue for me is that it is not easy to use one-handed. Taking two hands presents some additional risks while cycling. Furthermore a few times the entire top rotated, vs just the spout. Thus I will continue to use on training rides but in other rides will likely continue to use the packets that I can open with my teeth.
Was this review useful to you?
Yes /
No Thank you for your feedback.
Reviewed 1/11/2018
by Anonymous
Cycling Enthusiast
Phoenix AZ
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
Invaluable Product
Bought 2 of these to use for easier nutrition consumption. A great decision with no mess or trash to worry about during extending rides.
Was this review useful to you?
Yes /
No Thank you for your feedback.
Hard to open
Be careful and don't over tighten! Extremely hard to get open to fill if cap is too tight. Otherwise a very good product. Very pliable and easy to squeeze. Has doseage marks. I like it better than the Hammer flask.
Was this review useful to you?
Yes /
No Thank you for your feedback.
3 of 4 customers found this review helpful.
great concept, or so it first seems. But, alas, it appears impossible that ANYONE will figure out how to keep the fingers from getting sticky.
Other than the hard-to-loosen nozzle, the other serious downside is if you don't work thru the batch in your flask relatively fast, then the gel hardens in the flask corners and along the bottom edge. Short window to work through 5 packs' worth. So back to the individual eco-insensitive packs I go ,)
Was this review useful to you?
Yes /
No Thank you for your feedback.
Mechanic's Corner Articles will open in new tab.
