Magnetic Therapy Back Support Posture Corrector Belt Breathable Adjustable Shoulder Support Back Brace Belt Corrector De Postura Color:Black Material :Neoprene, Elastic, Mesh colth,2 PCS steel bars Package Include : 1 * Back Support Brace POSTURE CORRECTOR: back support brace works by training your muscles and spine to return to their natural alignment, helps to correct your posture of back and shoulder, makes you stand upright and more confident. RELIEF BACK PAIN: Ease the pain of middle and upper back. Prevent the progreive spinal curvature and change the bad habits of kyphosis. Rehabilitation after injuries and surgery of the thoracic and upper lumbar sections of spine and clavicle.It can be used by student,offcie people,old people and so on. About the size: Waist 65-85cm,we advice size S; Waist 85-95cm,we advice size M; Waist 95-105cm,we advice size L; Waist 105-115cm,we advice size XL; Waist 115-125cm,we advice size XXL; Note:please measure your waistline with a tape and check our size chart before your purchase. If your waist fits two of the size, Please choose the bigger one. BackSupport helpsfor following symptoms: Humpback Bad posture kyphoscoliosis Spinal curvature Thoracic kyphosis Thoracic lordosis Clavicle fracture Misaligned Spine Round shoulder Posture Corrector Brace Features: 1. Super easy to adjust the degree of tightne by your own. 2. Strong Supportwith 2 PCS steel support bars 3. Superior Comfort.You can wear the posture brace at home or office and anywhere you like. 4. Use soft fabric to wrap edge, will not Cut Arms, just remember don';t pull the shoulder straps too tight. 5. Easy to Put On and Take Off 6. Light Weight 7. Durable Material 8. Humanized Design Washing Tips: Hand wash in colder water with soap, then air dry, a brush may needed to clean the right back area. Dont clean it with washing machine. Back support made of neoprene,so will have a little smell.This is not the quality problem.