I have two of those, but not in my EDC. Since 95% of my time is spent in urban, I carry enough water to get me to a reliable source/more equipment. I used to have one of the straws in my EDC, but that was back when work took me to remote locations.

Good call, though.
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The ultimate result of shielding men from the effects of folly is to fill the world with fools.
-- Herbert Spencer, English Philosopher (1820-1903)