Thermal technology locks in heat without the need for cumbersome layers. Better still, styles have long shaken off their less-than-chic reputation, and Uniqlo's HeatTech range is a case in point.
From traditional long johns to Uniqlo’s fan-favorite HeatTech line, heat-insulating clothing is essential. Just ask my mom, a lifelong Chicago teacher who swears by her HeatTech turtleneck and ...