A bandeau is a garment comprising, in appearance, a strip of cloth. Today, the term frequently refers to a garment that wraps around a woman's breasts. It is usually part of a bikini in sports or swimwear. It is similar to a tube top, but narrower. It is usually strapless, sleeveless, and off the shoulder. Bandeaux are commonly made from elastic material to stop them from slipping down, or are tied or pinned at the back or front. In the first half of the 20th century, a "bandeau" was a narrow band worn by women to bind the hair, or as part of a headdress.