Horizon 627 Lumbar With one of the lowest profile designs of all Horizon products, the Horizon 627 Lumbar provides excellent support and stability. Using the widely praised SlickTrack tightening system, the Horizon 627 creates circumferential compression proven to increase trunk stability for patients recovering from surgery or injury. The Horizon 627 is one-size adjustable and comfortably fits waists from 24-70 inches. Like all Horizon braces, the Horizon 627 Lumbar can be stepped down to the Horizon PRO for treatment of recurring back conditions.