Core Temperature Regulator helps prevent dehydration and heat exhaustion while allowing optimum strength & performance.

+ Constructed of thin, strategically placed layers of “Super Absorbent Polymer”
+ Once saturated with water, polymer retains and slowly disperses to keep you cool
+ Strategic sections will keep your core temperature down longer
+ Helps to maximize your riding session

http://www.evs-sports.com/product/tug-undergear/ctr_cooling_vest/