The reviews did not help me too much. Half of them said to order smaller and the other half said to go bigger or follow the chart, I decided to order medium. I'm 5'1" 120lbs and my waist is 28inch. My goal is to make my wait smaller so I wanted a size the was snug on the first hooks and move it up as my waist got smaller but the medium was snug on the last hooks which means I'm going to have to order a small real soon.