A headband is not only a fashion accessory; they're also handy for sports, when travelling or for camping. You can wear a one to keep the sun and hair off your face or absorb sweat in summer. The latest materials even have the ability to cool the forehead somewhat when they get damp. However, headbands are mainly worn in colder temperatures. The inner material is usually roughened and pleasantly soft, keeping the forehead and ears warm while the outer fabric is wind and rain-resistant, aiding against wind chill. In general, a headband should be breathable, dry quickly and fit comfortably.