The brace works by supporting your chest and back while bringing your chest forward. You should purchase this sort of brace on line or talk to a chiropractor or back expert for any advice. A molded back brace has a little metal or plastic piece resting amongst the shoulder blades. https://back-posture-corrector-ch61615.mybloglicious.com/37782305/helping-the-others-realize-the-advantages-of-posture-corrector-back-support