Perfect for everyday use and hot weather running, the Headsweats Race Hat features a lightweight, classic design that keeps the sun off and the heat moving through. Weighing in at less than two ounces, the Race Hat fabric shell is made of breathable, moisture-wicking Eventure fabric. The CoolMax terry headband prevents perspiration from dripping into your eyes and transfers moisture off of the skin for evaporative cooling. This easy-to-care for hat fits most heads and is machine washable.