Gu Energy Gel Flask
This flask works great. I fill it up the night before, place it in the fridge and in the morning throw it in my jersey pocket. It is easy to get to and easy to use. The nozzle works well and I can consume as much or as little as I want. Other reviews mentioned it was hard to use with one hand, I put the flask in a tumbler glass and have both hands to use for the gel pack. I've used this 3 times already and it enables me to carry enough gel for 60+ mile rides. I don't worry too much about how much I consume. I just consume some drink some water and consume a little more later. I like this much better than the individual gel packs. There is nothing to throw away and I don't have to worry about having sticky gel envelopes in my jersey pocket. - Faith W.
This flask works great. I fill it up the night before, place it in the fridge and in the morning throw it in my jersey pocket. It is easy to… Read more
I love how it's easy it is to wash. The job is a little annoying during runs but it does it's job...
Really nice to have a GU flask instead of carrying individual packets (no more trash). A potential downside is that you can't carry different flavors -- although I did mix… Read more
What we think
The folks at GU teamed up with 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 Gu Energy Gel and includes marks on the back to measure your fuel. Fill up your Gu Energy Gel Flask from the new 15 serving pouches, fuel with it, and reuse it! Your trail buddies and the planet thank you!
How We Use It
We use the GU Flask on any long outing. Our favorite time to use this product is when we are on the mountain skiing! The Gu Flask keeps our gels from freezing on even the coldest days.