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Another tool it the tool box! If you want to carry your carbs in your pocket, pack, or hand, then easily mix your Formula 369 drink mix as a concentrated solution, and fill up your flask!
Directions: We suggest using a water bottle to mix and fill your flask.
Fill your flask with water
Dump the water from the flask into a water bott
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93 ratings
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Great product for the price!
B
Bryan · October 30, 2026
Perfect size for on the run
T
Taryn · October 28, 2026
369 has been the best product for me to fuel with while on the bike. These soft flask make it easier to take in large quantities while still keeping full bottles of water on the bike.