I read an article recently (seems like it was in Dr. Mirkin's e-newsletter) stating that cooling neckbands/bandannas could help people run or exercise longer in hot weather. Has anyone tried one? I am tempted since I live in such a hot-weather area, and after sweltering through "winter" runs, I know it's only going to get worse from here on out as the sun gets even stronger.

Here's an example of what I am talking about:

http://www.rei.com/product/691097/ka...-header-691097

Would be interested in any experiences or feedback pro or con of such a thing, or any other similar products you've used.

Thanks!