Under Armour

ColdGear Infrared Run Beanie

You run outside all winter because, well, running on a treadmill can barely be called running. But before you venture out for your daily endorphin fix, be sure to protect your melon from the cold with the Under Armour ColdGear Infrared Run Beanie. Its thermo-conductive inner coating makes it surprisingly warm given its thin construction. The beanie also wicks moisture and resists odor-causing microbial growth, so you can wear it back-to-back days, without it picking up any unruly odors.