The Horizon 456 is designed to provide motion restriction, creating a dynamic environment for healing within the thoracolumbar and lumbar spine. Comfortable and easy to apply and remove, the Horizon 456 improves patient compliance. The Horizon 456 is one-size adjustable and comfortably fits waists from 24-70 inches. Like all Horizon braces, the Horizon 456 TLSO can be stepped down to the Horizon PRO for treatment of recurring back conditions.