I recently had a baby and still have a little stomach.  I bought a medium, I am 156lbs and it fits perfect. I can actually wear camis and not even have to pull in my stomach.  When people see me they want to know what exercises I do or what gym I go to.  I believe that a woman's undergaments are more important than the actual clothes she's wearing.  This is a great product to buy.  I love it.