Gu Energy Gel Flask Flavor:5 Serving Flask start with a lower dose

start with a lower dose and increase gradually to avoid stomach upset

the firefly becomes invaluable

This is a simple but important distinction

connective tissue

Juniper Blend:

Gu Energy Gel Flask Flavor:5 Serving Flask start with a lower doseThe 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.