Carry More Fuel. Create Less Waste.

Ditch the sticky wrappers and simplify your race-day nutrition. The Open Fuel Gel Flask is a lightweight, reusable flask designed to hold up to three servings of Open Fuel Gel Mix (90g of carbohydrates) in one compact package. Whether you're lining up for a marathon, heading into the mountains, or tackling a long ride, this flask lets you fuel quickly, cleanly, and with one hand.

Weighing just 18.5g empty, the Gel Flask features a flip-top lid with a one-way silicone valve that delivers smooth, controlled fueling without leaks or sticky fingers. Fill it at home, toss it in your running vest or cycling jersey, and focus on the miles ahead—not on opening gel packets.

WHY YOU'LL ACTUALLY LOVE IT

• Holds up to 90g of carbohydrates – Carry the equivalent of three gels in one lightweight flask.
• One-handed fueling – Flip, squeeze, fuel, and keep moving without breaking your stride.
• No more sticky wrappers – Reduce waste and eliminate the mess of disposable gel packets.
• Ultra-lightweight design – At only 18.5g, you'll barely notice it's there.
• Leak-resistant valve – The one-way silicone valve and flow-control nozzle help keep your nutrition where it belongs.
• Fits your favorite gear – Slides easily into running vests, cycling jerseys, waist belts, and most running shorts.
• Easy to refill and clean – Simply mix your fuel, fill the flask, rinse after use, and it's ready for your next adventure.

WHO IT'S FOR

• Marathoners and ultrarunners who want fewer wrappers during races.
• Cyclists looking for a cleaner, more efficient fueling solution.
• Triathletes simplifying their nutrition strategy.
• Endurance athletes who make their own gels or use Open Fuel Gel Mix.
• Anyone looking to reduce waste without sacrificing convenience.

HOW TO USE IT

1. Mix your Open Fuel Gel Mix according to the recommended instructions.
2. Fill the Gel Flask, close the flip-top lid, and pack it in your vest, jersey, or race belt.
3. Flip, squeeze, and fuel throughout your workout or race as needed.

Pro Tip: One filled flask replaces multiple single-use gel packets, making aid stations and race fueling quicker, cleaner, and a whole lot less cluttered.