Gu Energy Gel Flask
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!