The necktie (or tie) is a long piece of cloth, either woven or knitted, worn around the neck, under the shirt collar, and knotted at the throat, with its blades resting on the shirt front, covering the buttons. The modern necktie, ascot, and bow tie, descend from the cravat.
Men wear neckties as regular office attire, formal wear, or uniform. Neckties are also worn by women as part of a uniform (e.g. military, school, waitstaff) but are not typical women's wear in other contexts.
Variants include the bow tie, ascot tie, bola tie, and the clip-on tie.