Improve Posture and Relieve Back Pain: The posture corrector works by training your muscles and straightening your spine back to natural alignment. Wearing this back brace can also help to relieve your back pain caused by Scoliosis, Spondylolisthesis and Thoracic Outlet Syndrome. Two Metal Splints Provide Effective Support: 2 aluminum support plates are contoured along the axis of your back spinal; it provides strength and stability to your upper back and gradually correct your bad back posture. Durable and Comfortable: Made of high-density sponge and premium polyester material, the lightweight soft padding protect the shoulders; two cartilage supports on the back and stylish back braces make you more confident. Invisible Under Clothes: This back brace can be worn invisibly under your clothes which enables you wear it anywhere even in work or school; no more hunching, slouching or rolling your shoulders forward.