When the temperature dips, keeping your head warm is the key to whole-body temperature regulation. Our new ThermoNet™ Hat provides maximum protection from the cold with a breathable, durable PrimaLoft® yarn that is four times warmer than regular microfiber. The result of years of research and testing, the ThermoNet™ Hat wicks moisture away from your skin whi Ver más...le trapping heat inside, keeping your head comfortable and dry in even the most frigid winter weather.