Balaclavas are a head covering that consists of a single piece of material and is usually worn on the face, neck, and head. They can be made from various materials such as cotton, fleece, wool, neoprene, or polyester, depending on their intended use.
Balaclavas are primarily used in extreme sports such as skiing, snowboarding, cycling, motorcycling, or mountain climbing, as they provide protection against wind, cold, rain, as well as insects and dust. They can also be used as anti-smog masks, particularly in large cities with heavily polluted air.
In recent years, balaclavas have also become a popular fashion accessory, often worn as an element of streetwear style. They are available in various colors and patterns, making it possible to match them to one's personal style.