The Horizon™ 637 LSO provides trunk stability and targeted compression designed to support fatigued muscles causing secondary back pain resulting from surgery or injury. Moveable, rigid side panels provide lateral support and a comfortable environment for healing. One size adjustable, the Horizon 637 LSO comfortably fits waist sizes ranging from 24-50 inches, and up to 70 inches with the extension panels. To further support patient recovery, Horizon braces can be stepped down to the Horizon PRO for treatment of recurring ailments.