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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 Nick Greenfield, Runner — Pacific Northwest, USA

    Highlights: long distance

    The Gel Mix Bulk Bag from Open Fuel offers a convenient and eco-friendly solution for athletes seeking customizable energy on the go. With a balanced blend of carbohydrates and sodium, this gel mix ensures optimal performance without the waste of single-use packets. 1. Each serving contains 30g of carbohydrates and 200mg of sodium, providing essential energy and hydration. 2. Crisp neutral flavor allows for versatile mixing with other beverages or consumption on its own. 3. Affordable pricing at $1.70 per gel, making it a cost-effective choice for regular users. 4. Easy-to-make formula gives you complete control over your fuel intake, tailored to your activity level. 5. Compatible with the Open Fuel branded reusable 180ml flask, designed to hold three servings or 90g of carbs, promoting sustainability. 6. Lightweight and portable, perfect for carrying during long runs, hikes, or cycling trips. 7. No more trash on trails, as this product eliminates the need for disposable gel packets. The Gel Mix Bulk Bag is ideal for endurance athletes, including runners, cyclists, and hikers, who require quick and efficient energy sources during their activities. It performs best in outdoor environments, such as trails and roads, where convenience and sustainability are paramount. This product is perfect for both novice and experienced athletes looking to enhance their performance while minimizing environmental impact. Whether training for a marathon or enjoying a weekend adventure, this gel mix is designed to meet your fueling needs year-round.

    Price: $26 - $40

    Expert Review

    The gel mix is a recent addition to the Open Fuel lineup, and it's quickly become a part of my main fueling plan. I only recently started using it, but I'm already hooked. I really appreciate the approach to reducing waste by eliminating individual gel wrappers. It's simple to carry a flask and fill it with exactly as much fuel as you need for your run. The taste is great, it’s not overly sweet and is enjoyable even late into long efforts. You can even mix in a little drink mix if you want to dial in a specific flavor. It's been fueling my long runs as I build toward my next race - Waldo 100K.

    Recommended by Nick Greenfield

    Frequently asked questions

    What does Nick Greenfield say about the Gel Mix Bulk Bag?

    The gel mix is a recent addition to the Open Fuel lineup, and it's quickly become a part of my main fueling plan. I only recently started using it, but I'm already hooked. I really appreciate the approach to reducing waste by eliminating individual gel wrappers. It's simple to carry a flask and fill it with exactly as much fuel as you need for your run. The taste is great, it’s not overly sweet and is enjoyable even late into long efforts. You can even mix in a little drink mix if you want to dial in a specific flavor. It's been fueling my long runs as I build toward my next race - Waldo 100K.

    Rendezvu
    Gel Mix Bulk Bag by Open Fuel — recommended by Nick Greenfield
    Nutrition & Hydration

    Gel Mix Bulk Bag

    Nick Greenfield
    Nick GreenfieldRecommended in “Running Essentials”
    The gel mix is a recent addition to the Open Fuel lineup, and it's quickly become a part of my main fueling plan. I only recently started using it, but I'm already hooked. I really appreciate the approach to reducing waste by eliminating individual gel wrappers. It's simple to carry a flask and fill it with exactly as much fuel as you need for your run. The taste is great, it’s not overly sweet and is enjoyable even late into long efforts. You can even mix in a little drink mix if you want to dial in a specific flavor. It's been fueling my long runs as I build toward my next race - Waldo 100K.
    Purchasing through this link directly supports Nick
    Nutrition & Hydration

    Gel Mix Bulk Bag

    Nick Greenfield
    Nick GreenfieldRecommended in “Running Essentials”
    The gel mix is a recent addition to the Open Fuel lineup, and it's quickly become a part of my main fueling plan. I only recently started using it, but I'm already hooked. I really appreciate the approach to reducing waste by eliminating individual gel wrappers. It's simple to carry a flask and fill it with exactly as much fuel as you need for your run. The taste is great, it’s not overly sweet and is enjoyable even late into long efforts. You can even mix in a little drink mix if you want to dial in a specific flavor. It's been fueling my long runs as I build toward my next race - Waldo 100K.
    Purchasing through this link directly supports Nick
    Gel Mix Bulk Bag by Open Fuel — recommended by Nick Greenfield

    This product is for…

    Trail and ultra runners who want to reduce single-use gel wrapper waste and prefer to control carb density and consistency in a single flask. Also suits runners sensitive to GI issues or sweetness who benefit from a neutral, low-preservative formula.

    Worth noting…

    Pairs with Open Fuel drink mix for added flavor to combat palate fatigue on long efforts. Multiple hosts report no GI issues, including during 100K races.

    Why does Nick Greenfield recommend Open Fuel?

    Nick Greenfield recommends the Open Fuel Gel Mix Bulk Bag for running energy nutrition. The gel mix is a recent addition to the Open Fuel lineup, and it's quickly become a part of my main fueling plan. I only recently started using it, but I'm already hooked. I really appreciate the approach to reducing waste by eliminating individual gel wrappers. It's simple to carry a flask and fill it with exactly as much fuel as you need for your run. The taste is great, it’s not overly sweet and is enjoyable even late into long efforts. You can even mix in a little drink mix if you want to dial in a specific flavor. It's been fueling my long runs as I build toward my next race - Waldo 100K.

    Is the Gel Mix Bulk Bag a good running energy nutrition?

    Yes — Nick Greenfield recommends the Gel Mix Bulk Bag by Open Fuel as their running energy nutrition pick. The gel mix is a recent addition to the Open Fuel lineup, and it's quickly become a part of my main fueling plan. I only recently started using it, but I'm already hooked. I really appreciate the approach to reducing waste by eliminating individual gel wrappers. It's simple to carry a flask and fill it with exactly as much fuel as you need for your run. The taste is great, it’s not overly sweet and is enjoyable even late into long efforts. You can even mix in a little drink mix if you want to dial in a specific flavor. It's been fueling my long runs as I build toward my next race - Waldo 100K.

    Is the Gel Mix Bulk Bag good for long distance?

    Nick Greenfield recommends it for long efforts: The gel mix is a recent addition to the Open Fuel lineup, and it's quickly become a part of my main fueling plan. I only recently started using it, but I'm already hooked. I really appreciate the approach to reducing waste by eliminating individual gel wrappers. It's simple to carry a flask and fill it with exactly as much fuel as you need for your run. The taste is great, it’s not overly sweet and is enjoyable even late into long efforts. You can even mix in a little drink mix if you want to dial in a specific flavor. It's been fueling my long runs as I build toward my next race - Waldo 100K.

    More from Nick Greenfield's Running Essentials

    • Open Fuel Drink Mix 24 Serving Bulk Bag
    • Asics Superblast 3
    • adidas TERREX Agravic Speed Ultra 2
    • Terignota Valhalla Vest
    • Terignota Men's Sendero Short
    • Shokz OpenRun Pro 2
    • Coros Pace Pro
    • Coros Heart Rate Monitor

    View Nick Greenfield's expert gear recommendations on Rendezvu