1.Comfortable Fabric The Magnetic Posture Corrector Back Brace is made from a lightweight, breathable material. The adjustable straps of brace back are made of thin and skinfriendly elastic material which won't hurt your skin. 2.Magnetic Therapy Posture Corrector The posture corrector contains 12 magnets to massage the back and waist, helping you ease back and waist pain by training your muscles and spine to to their natural alignment. Great for thoracic outlet syndrome, thoracic support and upper back pain relief, scoliosis or hunchback alignment for correcting posture. 3.Adjustable Size Our back posture corrector has two adjustable straps and velcro belts, which can be easily adjusted by yourself to a comfortable condition. The posture corrector fits chest circumferences between 37 to 41 inches and waist 37 to 45 inches. Wearing the back straightener for some time develops muscle memory, which means you'll keep your back straight even without the posture corrector device. 4.Health Improvement Our posture corrector supports improving hunchback, bad posture, spinal support, back neck pain relief for women and men. Used as a training device for a few hours a day over a few months, you will begin to see an improvement in your posture. You will feel more confident and ier.