I have bought mini back braces but this one fits absolutely perfectly and provides support exactly where I need it. Other braces become looser throughout the day, or maybe the Velcro slips and hast to constantly be repositioned. Not this one. This one remains firmly in place from the time I put it on until the time I decide to take it off. It remains strong and secure throughout the day. My back feels so good at the end of end of the day.