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    Rendezvu
    On a mission to get more people to enjoy the outdoors© 2026
    RendezvuAboutFor HostsFor BrandsFor Shoppers
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    ResourcesDocsContactFeedback
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    Brand: REI

    Category: Running Energy Nutrition

    Recommended by Jeffrey Hammond, Foot Doc, ultrarunner, cool dad. — Provo, Utah

    Highlights: long distance, lightweight

    Stay energized and hydrated during your most demanding activities with the Endurance Fuel Drink Mix. This premium blend provides essential calories, electrolytes, and hydration without compromising taste or comfort. 1. Contains 30 servings, ensuring you have ample supply for extended training sessions or races. 2. Formulated with a balanced mix of carbohydrates and electrolytes to support sustained energy levels. 3. Easy to digest, minimizing stomach discomfort during intense physical exertion. 4. Available in a variety of delicious flavors to satisfy your taste preferences. 5. Simply mix with water for a quick and convenient hydration solution on-the-go. 6. Free from artificial colors, flavors, and preservatives, promoting a clean and natural energy source. 7. Lightweight and portable packaging makes it ideal for travel, outdoor adventures, and competitions. The Endurance Fuel Drink Mix is designed for athletes and fitness enthusiasts engaged in endurance sports such as running, cycling, or hiking. It performs best in high-intensity environments where hydration and energy replenishment are crucial. Ideal for both beginners and seasoned athletes, this drink mix excels during long workouts, races, or outdoor activities, ensuring you maintain peak performance regardless of the season or conditions.

    Price: $31.95

    Expert Review

    This has been one of my favorite fueling products for long runs, ultras, and big training days. What I love most is the simplicity—carbohydrates, electrolytes, and calories all in one bottle. It takes a lot of the guesswork out of fueling and helps me stay consistent when eating real food or gels starts to feel like work. I've used Tailwind during long training runs, races, and overnight adventures, and it has always been easy on my stomach. The flavors are light enough that I don't get flavor fatigue, even after hours of drinking it. When you're deep into an ultra and your brain is no longer making good decisions, having a bottle that delivers calories and hydration at the same time is a huge advantage. If I could only carry one fueling product for a long day on the trails, Tailwind would be near the top of the list. It's simple, reliable, stomach-friendly, and has earned its place in my race kit over and over again.

    Recommended by Jeffrey Hammond

    Frequently asked questions

    What does Jeffrey Hammond say about the Endurance Fuel Drink Mix - 30 Servings?

    This has been one of my favorite fueling products for long runs, ultras, and big training days. What I love most is the simplicity—carbohydrates, electrolytes, and calories all in one bottle. It takes a lot of the guesswork out of fueling and helps me stay consistent when eating real food or gels starts to feel like work. I've used Tailwind during long training runs, races, and overnight adventures, and it has always been easy on my stomach. The flavors are light enough that I don't get flavor fatigue, even after hours of drinking it. When you're deep into an ultra and your brain is no longer making good decisions, having a bottle that delivers calories and hydration at the same time is a huge advantage. If I could only carry one fueling product for a long day on the trails, Tailwind would be near the top of the list. It's simple, reliable, stomach-friendly, and has earned its place in my race kit over and over again.

    Rendezvu
    Endurance Fuel Drink Mix - 30 Servings by REI — recommended by Jeffrey Hammond
    Nutrition & Hydration

    Endurance Fuel Drink Mix - 30 Servings

    Jeffrey Hammond
    Jeffrey HammondRecommended in “Food... Well gels and stuff you have to eat!”
    This has been one of my favorite fueling products for long runs, ultras, and big training days. What I love most is the simplicity—carbohydrates, electrolytes, and calories all in one bottle. It takes a lot of the guesswork out of fueling and helps me stay consistent when eating real food or gels starts to feel like work. I've used Tailwind during long training runs, races, and overnight adventures, and it has always been easy on my stomach. The flavors are light enough that I don't get flavor fatigue, even after hours of drinking it. When you're deep into an ultra and your brain is no longer making good decisions, having a bottle that delivers calories and hydration at the same time is a huge advantage. If I could only carry one fueling product for a long day on the trails, Tailwind would be near the top of the list. It's simple, reliable, stomach-friendly, and has earned its place in my race kit over and over again.
    Purchasing through this link directly supports Jeffrey
    Nutrition & Hydration

    Endurance Fuel Drink Mix - 30 Servings

    Jeffrey Hammond
    Jeffrey HammondRecommended in “Food... Well gels and stuff you have to eat!”
    This has been one of my favorite fueling products for long runs, ultras, and big training days. What I love most is the simplicity—carbohydrates, electrolytes, and calories all in one bottle. It takes a lot of the guesswork out of fueling and helps me stay consistent when eating real food or gels starts to feel like work. I've used Tailwind during long training runs, races, and overnight adventures, and it has always been easy on my stomach. The flavors are light enough that I don't get flavor fatigue, even after hours of drinking it. When you're deep into an ultra and your brain is no longer making good decisions, having a bottle that delivers calories and hydration at the same time is a huge advantage. If I could only carry one fueling product for a long day on the trails, Tailwind would be near the top of the list. It's simple, reliable, stomach-friendly, and has earned its place in my race kit over and over again.
    Purchasing through this link directly supports Jeffrey
    Endurance Fuel Drink Mix - 30 Servings by REI — recommended by Jeffrey Hammond

    This product is for…

    Endurance athletes—ultrarunners, long-distance hikers, and racers—who want a single-bottle solution for calories, carbs, and electrolytes on big efforts. It suits people who struggle with solid food or gels during long hours of activity.

    Worth noting…

    Single-serve packets make it easy to carry and portion without mess. Lemon flavor is specifically called out as a favorite.

    Why does Jeffrey Hammond recommend REI?

    Jeffrey Hammond recommends the REI Endurance Fuel Drink Mix - 30 Servings for running energy nutrition. This has been one of my favorite fueling products for long runs, ultras, and big training days. What I love most is the simplicity—carbohydrates, electrolytes, and calories all in one bottle. It takes a lot of the guesswork out of fueling and helps me stay consistent when eating real food or gels starts to feel like work. I've used Tailwind during long training runs, races, and overnight adventures, and it has always been easy on my stomach. The flavors are light enough that I don't get flavor fatigue, even after hours of drinking it. When you're deep into an ultra and your brain is no longer making good decisions, having a bottle that delivers calories and hydration at the same time is a huge advantage. If I could only carry one fueling product for a long day on the trails, Tailwind would be near the top of the list. It's simple, reliable, stomach-friendly, and has earned its place in my race kit over and over again.

    Is the Endurance Fuel Drink Mix - 30 Servings a good running energy nutrition?

    Yes — Jeffrey Hammond recommends the Endurance Fuel Drink Mix - 30 Servings by REI as their running energy nutrition pick. This has been one of my favorite fueling products for long runs, ultras, and big training days. What I love most is the simplicity—carbohydrates, electrolytes, and calories all in one bottle. It takes a lot of the guesswork out of fueling and helps me stay consistent when eating real food or gels starts to feel like work. I've used Tailwind during long training runs, races, and overnight adventures, and it has always been easy on my stomach. The flavors are light enough that I don't get flavor fatigue, even after hours of drinking it. When you're deep into an ultra and your brain is no longer making good decisions, having a bottle that delivers calories and hydration at the same time is a huge advantage. If I could only carry one fueling product for a long day on the trails, Tailwind would be near the top of the list. It's simple, reliable, stomach-friendly, and has earned its place in my race kit over and over again.

    Is the Endurance Fuel Drink Mix - 30 Servings good for long distance?

    Jeffrey Hammond recommends it for long efforts: This has been one of my favorite fueling products for long runs, ultras, and big training days. What I love most is the simplicity—carbohydrates, electrolytes, and calories all in one bottle. It takes a lot of the guesswork out of fueling and helps me stay consistent when eating real food or gels starts to feel like work. I've used Tailwind during long training runs, races, and overnight adventures, and it has always been easy on my stomach. The flavors are light enough that I don't get flavor fatigue, even after hours of drinking it. When you're deep into an ultra and your brain is no longer making good decisions, having a bottle that delivers calories and hydration at the same time is a huge advantage. If I could only carry one fueling product for a long day on the trails, Tailwind would be near the top of the list. It's simple, reliable, stomach-friendly, and has earned its place in my race kit over and over again.

    More from Jeffrey Hammond's Food... Well gels and stuff you have to eat!

    • REI Gel 100
    • Maurten Gel 100 Caf 100
    • Tailwind Nutrition Endurance Fuel Drink Mix - 1 Serving Berry
    • Precision Hydration PF 30 Gel
    • Precision Hydration PF 30 Caffeine Gel

    View Jeffrey Hammond's expert gear recommendations on Rendezvu