I'm getting back into running in preparation for a duathalon, and my ever increasing distances plus the heat wave we're having right now have got me thinking... I should probably be carrying water when I run.

In the past I've always stayed under 3 miles, and it was easier not to, but now I'm starting to feel like I need the hydration. I went to a sporting goods store last weekend and checked out the hydration belts, but I was a little overwhelmed by the choices.

Suggestions on staying hydrated during your run?