Fertility doctors often advise men that wearing boxers instead of briefs lowers scrotal temperature and possibly increase sperm count. The CoolMen device takes that idea to the extreme, instrumenting the wearer's testicles with temperature, pulse, and motion sensors while also cupping them in a specific position conducive to coolness. From the Polish start-up CoolTec:
CoolMen is an innovative device that stabilizes the temperature of the testicles in the optimum range. In a short time, CoolMen significantly improves semen parameters, contributing to increased fertility of the pair.
CoolMen can record data about temperature and time of use as well as types of activity (sleep, sitting, physical activity) by wirelessly transferring it to the mobile application on the smartphone. These data can then be analyzed by the andrologist to improve the treatment process...
CoolMen has been designed to be completely invisible under clothing, providing full discretion during use.