Providing anterior and posterior motion restriction, the Aspen Horizon 631 LSO (Lumbosacral Orthosis) is the perfect blend of comfort and support, promoting a rapid recovery and return to mobility. Anterior panels and the SlickTrack tightening system integrate to provide a therapeutic level of compression for patients recovering from surgery or injury. Can be used also for the treatment of degenerative disc disease; bulging or herniated disc; spondylolisthesis; and chronic back pain. Removable upper lumbar section. One-size adjustable, this orthosis can be worn underneath clothing.