The invention that launched Shafer Enterprises and Cool Shirt was a cooling vest for surgeons to use in the operating room. Rich Shafer, the company's founder, spent many years working beside surgeons for hours under hot operating room lights as a distributor for replacement knees, hips, etc. In a true entrepreneurial spirit, Rich saw the opportunity to help the doctors that were helping the patients and the Surgeon's Cool Vest was born. Since 1987, Shafer Enterprises has grown exponentially to become the world leader in personal cooling systems for surgeons, racecar drivers, football players, fire/emergency services/hazmat, military and industrial workers. Using NASA study guidelines, Cool Shirt active cooling systems help people manage body heat in extreme environments using circulating temperature-controlled cool water.