GU Flask
$12.99
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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 Energy Gel and includes marks on the back to measure your fuel.Fill it with Energy Gel from our new 15-Serving pouches, fuel with it, and reuse it!
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