--COMFORTABLE AND SOFT: Our shoulder belt is wider and thicker, when the padded shoulder straps pull your shoulders back, it does not pinch your arms, very comfortable to wear--POSTURE CORRECTOR: The support brace works by training your muscles and spine to return to their natural alignment, helps correct your poor back and shoulder posture, makes you stand tall and more confident--FULL BACK SUPPORT: Posture corrector provides full back support, allowing effective assistance and strong support, also supports the middle and upper back--BACK PAIN RELIEF: Help relieve middle and upper back pain. Reduction after injuries and surgery of the upper thoracic and lumbar sections of the spine and clavicle--ADJUSTABLE SIZE: The shoulder straps allow for proper adjustment for optimal fit. Fit for 40-52 inch waist circumference, please measure and compare with your own size before purchasing please!