Original sentence: A posture collar is a rigid collar that is wide enough to restrict movement of the neck.Posture collars are often decorated, and may include other bondage elements such as locking closures, decorative spikes or D-rings for attaching restraints.Posture collars typically flare widely at the front to reach from the chin down to the collarbone, preventing the wearer from hanging their head or looking downward.Such collars are typically made from leather, but may also be made from metal, rubber or plastics such as PVC
Edited sentence: A posture collar is a rigid collar that is wide enough to reach from under the chin to the shoulders.It significantly restricts neck movement and forces the wearer to adopt a heads-up posture.Many doms prefer their subs to be "proud" of being under their control.Posture collars are often decorated, and may include other bondage elements such as decorative spikes or D-rings for attaching restraints.Posture collars are typically made from leather, but may also be made from metal, rubber or plastics such as PVC.The sub may be degraded, tried, or humiliated but they will not hang their head