Designed for post-operative patients in need of additional motion restriction, the Vista 637 LSO provides support to traumatized spinal structures that cause pain. Multiple back panel options and integrated anterior support provide a comfortable environment for healing. The Vista one-size adjustable 637 LSO can be stepped down to the Vista 631 LSO LoPro and the Vista 627 Lumbar and comfortably fits waist sizes ranging from 26-60 inches, and up to 70 inches with the extension panel.