Marathon Training Tip for HOT long runs: Soft Flask
By Michael Baker · August 9, 2025
Freezing water bottle technique and essential gear for hot weather marathon training. Learn how to stay hydrated and cool during summer long runs.
Marathon Training Tip for HOT long runs: I take this "soft" water bottle put a NUUN electrolyte tablet in it broken in 2 halves, add a bit of salt and freeze it. I take this with me in my compression shorts along with my electrolyte/carb gels. 🤓 As it melts, it provides a bit of cold and refreshing while I'm out there. I used to leave water bottles along my route but they got hot and it caused an unnatural break in my run.   Links:
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