Back braces, also known as lumbar braces, are used for patients with back pain to regain their normal mobility. Generally, back braces (also called back braces or back supports) are classified as rigid, semi-flexible, and flexible. Some back braces devices can be hard to use; others are easy to use and do not limit the range of motion. Generally, most back braces are constructed from the same materials but vary greatly in their rigidity and balance-dependent postural control.