Originally Posted by ph0rk
basically they are advocating evaporation, which is pretty much the only way to cool yourself once the air temperature is higher than your skin temperature (roughly 93 degrees, not 98).
See this following article from the Ironbutt Magazine: http://www.ironbutt.com/ibmagazine/I..._62-66_Hot.pdf
Depending on your jacket, you'll probably need a vent or two open to get the evaporative effect, regardless of what the LDComfort people say.
That's well worth a repost, thanks Phork...
Very well written, motorbike specific, and thoroughly informed. If you haven't already, do read it.