Keeps you up straight for sure!
This was a nice back support, but the straps would get to loose due to the material and it sliding on my shirt. I also got to big. I am 5'5" 150lbs and got XL. It does depend on your Jean size on most measurements I would say not just weight. I am an 11/13. XL was to big and I couldn't tighten it on my own. It comes with an extender for the waist part so I wouldn't be to concerned about it not fitting to tight in the tummy.  I just would rather have something super tight to make me stand up straight. It is a nice back brace if you get the right size!
Rating: 4 stars