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100% proprietary UltraCarbon™ material for a durable
Easy adjustment and maintenance
Manufactured in Spain from laser-cut
27…all of which are capable of keeping you riding toward the front race after race
GU Energy Gel Flask bikebox 100% proprietary UltraCarbon™ material forWe teamed up with our neighbours at Hydrapak to design a customised 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!
