PROTECT YOUR SHOULDER FROM FRICTIONY-shape cross belt design on the back will get better effect,it can help to straight your back and stand upright. Ergonomic shoulder design will protect your shoulder from damaging cased by friction. .ADJUSTABLE DESIGNOur professional posture correction back brace have 2 removable bars on the back, which provide strong support for lower back and waist, and stabilize and support your shoulders, chest, and back.The elastic belts also allow you to adjust it to your comfortable level. .IMPROVE POSTUREDouble Back Brace provide more effective support to pull your muscles and spine back to original alignment for posture improvement.Wearing this posture brace will be a good solution to slouch, hunchback and relieve neck or shoulder pain. .BREATHABLE MATERIAL with Acsergery MESH DESIGNAdopting high quality material spandex, which is breathable, durable and comfortable to wear. The mesh design makes it breathable and never feel muggy on your back. .6 SIZES FOR PEOPLE Keeping your posture straight boosts your confidence and makes you look more attractive.Our posture corrector has 6 sizes from S to XXXL for men, women and kidsIdeal for students and workaholics who sit all day at desk and have posture problems. .