balaclava means: Knitted covering for the head that covers only part or all of the face. For those outdoors who experience severe winter conditions. This headwear was originally worn in cold weather by military personnel. It is named after the Battle of Balaclava in mid 1800s, which took place during the Crimean War. (in Fashion Dictionary)

What else does balaclava mean?

Knitted caps that cover the head and neck, with openings for the eyes and face. Especially useful as cold weather gear, especially for soldiers, climbers and skiers. (in Merlin Dictionary)