@SteamLouis-- I had to wear it too for a while, for a compression fracture. I hated wearing it. I found it very uncomfortable and I could not wear it against my skin at all. I always had to wear a thin shirt underneath or it would cause strap marks against my skin or cause chafing. Mine was not like a jacket like in the picture. It was very much a brace and it immobilized my upper body entirely.
I still managed to wear it though because I didn't want to make the fracture worse. My doctor was good at scaring me and said that things would get worse without the brace.