Keep your ears toasty and warm during aerobic activity in cold conditions with the Columbia Thermarator Head Ring. This classic, fitted headband is constructed of 280-gram, 100% polyester Thermarator fleece fabric. Omni-Heat thermal reflective technology helps regulate temperature by reflecting and retaining the heat your body generates, while dissipating moisture and excess heat. An embroidered logo across the front lends distinctive Columbia styling. Imported.