Gu teamed up with their neighbors at 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, fuel with it, and reuse it!

• 5.5 oz Soft-flask
• High-flow nozzle
• Measurement markers
• Holds up to 5 servings