Imagine driving for hours under extreme humid conditions with the helmet on! That would make for quite a heated ride other than that heat of the competition of course. Under such conditions, with no air-conditioning unit around a liquid cooled shirt can be dubbed nothing short of a saviour. Affixed to an ice-water cooler in the car which acts a source of water for this cool shirt, it manages to circulate 45 to 60 degree water without eventually getting you wet. This is good enough for a three hour survival in those testing conditions.