Any of you track guys ever use a Cool Shirt?
http://www.coolshirt.net/
This is a shirt which circulates cold water through tubing woven into an undershirt worn under your racing suit to keep you cool on hot days.
I cooked myself past dehydration and into early heat exhaustion on Sunday at the track in 92F heat and high humidity and am looking for something to help me avoid that situation again when I go to Laguna Seca for three days at the end of August.
Any feedback is appreciated.