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    Rendezvu
    On a mission to get more people to enjoy the outdoors© 2026
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    Brand: Open Fuel

    Category: Running Energy Nutrition

    Recommended by Seth LaReau, Trail runner. Writer. Founder and author of Trail Waves. — Bay Area, California

    The Gel Flask by Open Fuel LLC is a revolutionary solution for athletes seeking efficient energy replenishment without the environmental impact of traditional gel packaging. Designed for convenience and performance, this flask allows you to carry three servings of gel in a compact, reusable format. 1. Capacity of 200ml, accommodating three servings of Gel Mix, providing 90g of carbohydrates and 600mg of sodium. 2. Lightweight design at only 0.6 ounces when empty, ensuring minimal added weight during activities. 3. Dimensions of 7.5 x 2.4 inches, making it easy to fit in your hand or stash in a pocket. 4. One-handed flip-top lid for quick and easy access to your energy gel while on the move. 5. One-way silicone valve with a flow-regulating nozzle, preventing spills and allowing for precise dispensing. 6. Eco-friendly design eliminates the need for single-use gel wrappers, reducing waste on trails and in landfills. 7. Tailored specifically for use with Open Fuel's Gel Mix products, ensuring optimal compatibility and performance. The Gel Flask is ideal for athletes engaged in running, cycling, or other endurance sports, providing a convenient way to stay fueled during long workouts or races. It performs best in outdoor environments where quick access to energy is crucial, making it perfect for training sessions, competitions, or recreational activities. This product is suitable for all skill levels, from beginners to seasoned athletes, and is particularly beneficial during warm weather or extended outings where hydration and energy replenishment are essential.

    Price: $8

    Expert Review

    Holds multiple servings of pre-mixed gels. Looks cool too.

    Recommended by Seth LaReau

    Frequently asked questions

    What does Seth LaReau say about the Gel Flask?

    Holds multiple servings of pre-mixed gels. Looks cool too.

    Why does Seth LaReau recommend Open Fuel?

    Seth LaReau recommends the Open Fuel Gel Flask for running energy nutrition. Holds multiple servings of pre-mixed gels. Looks cool too.

    Is the Gel Flask a good running energy nutrition?

    Yes — Seth LaReau recommends the Gel Flask by Open Fuel as their running energy nutrition pick. Holds multiple servings of pre-mixed gels. Looks cool too.

    More from Seth LaReau's Trail Favorites

    • Open Fuel Drink Mix 24 Serving Bulk Bag
    • Open Fuel Gel Mix Bulk Bag
    Rendezvu
    Gel Flask by Open Fuel — recommended by Seth LaReau
    Nutrition & Hydration

    Gel Flask

    Seth LaReau
    Seth LaReauRecommended in “Trail Favorites”
    Holds multiple servings of pre-mixed gels. Looks cool too.
    Purchasing through this link directly supports Seth
    Nutrition & Hydration

    Gel Flask

    Seth LaReau
    Seth LaReauRecommended in “Trail Favorites”
    Holds multiple servings of pre-mixed gels. Looks cool too.
    Purchasing through this link directly supports Seth
    Gel Flask by Open Fuel — recommended by Seth LaReau
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