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10 total reviews

GU Energy Flask

GU Energy Flask

We teamed up with our neighbors at Hydrapak to design a customized soft-flask with a high-flow nozzle to make fueling for long efforts more convenient and less sticky. The Flask holds 5-Servings of Energy Gel and includes marks on the back to measure your fuel.

Fill it with Energy Gel, fuel with it, and reuse it!
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10 total reviews

GU Energy Flask

GU Energy Flask

Regular price $12.99
Regular price Sale price $ 12.99
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We teamed up with our neighbors at Hydrapak to design a customized soft-flask with a high-flow nozzle to make fueling for long efforts more convenient and less sticky. The Flask holds 5-Servings of Energy Gel and includes marks on the back to measure your fuel.

Fill it with Energy Gel, fuel with it, and reuse it!
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average rating 4.5 out of 5
Based on 10 reviews
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80% of reviewers would recommend this product to a friend
Review posted
Reviewed by Di
Verified Reviewer
Rated 3 out of 5

Needs a Cap design

Since I use this when running with gel and water, so a normal water cap design would work. The problem is when you open it to drink. It twist in the same direction and leak, leaving a sticky mess. If the opening twist was in the opposite direction it might work better. Please either redesign or offered two options since it is otherwise a great little flask.

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Review posted
Reviewed by Tonia Foltz C.
Rated 4 out of 5

Hiking - Plane - Meeting -Mini Water Bottle

Its perfect for about an hour hike.

I put in my yoga side pockets during my workouts and it’s thin in shape and doest stretch my phone pockets out.

I can keep in my suit jacket while in a meeting and it’s not noticeable.

Great for the plane or skiing too!

Make sure lid is on tight.

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Review posted
Reviewed by John Z.
Verified Buyer
Rated 3 out of 5

Second Try

I have used this previously when it leaked. So I am giving it another try. After two uses, no problems. But it is not labor free. You must really be attentive to the cap, ensuring that it is tight and always clean it in warm water afterward. As a long time cyclist I have used this and other methods regarding GU type supplements. I am not sure that just bringing along a small plastic bag to use for the discarded individually wrapped product is more of a chore than using this product. I continue to test this proposition.

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