Why We Love It

The GU crew has teamed up with Hydrapak to design a soft-flask with a high-flow nozzle to make fueling for endurance events more convenient and less sticky. We love that it is reusable and helps reduce the litter trail associated with smaller single-serve packages.

Talk Nerdy To Me

This soft, reusable flask holds 5-servings of GU Energy Gel and features marks on the back help you measure your fuel. It's the perfect companion for

Fast facts

- Holds 5 servings of GU Energy Gel or 150ml

- Soft flask with high flow nozzle

- Marks on the back to measure your fuel