A necktie is a long piece of cloth worn around the neck, typically under the collar of a shirt. It is often made from materials like silk, polyester, or cotton and comes in various colors and patterns. Neckties are commonly associated with formal or business attire, adding a touch of elegance to an outfit. Neckties are usually fastened with a knot, with several styles available, such as the Windsor knot or Four-in-Hand knot. They can be worn for various occasions, including weddings, job interviews, and other formal events, making them a versatile accessory in men's fashion.