The Vista 631 LSO LoPro is a perfect blend of comfort and support, designed to help facilitate a rapid recovery and return to mobility. Specially engineered to provide motion restriction, its low profile design can be worn underneath loose clothing. The one-size adjustable Vista 631 LSO LoPro can be stepped down to the Vista 627 Lumbar and comfortably fits waist sizes ranging from 26-60 inches, and up to 70 inches with the extension panel.