A balaclava is a type of headwear that covers the entire head, face, and neck, leaving only the eyes, mouth, and sometimes the nose exposed. It is typically made from warm materials like wool or synthetic fabrics, making it ideal for cold weather activities such as skiing, snowboarding, or hiking. Originally named after the Battle of Balaclava during the Crimean War, where soldiers wore them for warmth, balaclavas have since become popular in various outdoor sports and among those working in cold environments. They are also used for protection against dust and wind in certain professions.