A noseband is the part of a horse's bridle that encircles the nose and jaw of the horse. In English riding, where the noseband is separately attached to its own headstall or crownpiece, held independently of the bit, it is often called a cavesson or caveson noseband. In other styles of riding, a simple noseband is sometimes attached directly to the same headstall as the bit.
Read more about Noseband: Development of The Noseband, Uses of The Noseband, Types of English Riding Nosebands, Training Designs, Western Designs, Fitting The Noseband