I am 5,5 145 lb. I usually wear a 6 or 8, but I ordered these in a 9, and they fit great! Theres still just a little room for if they shrink in the wash. Im giving them a 4star rating because the pink wasn't quite the rose color I wanted. Theyre actually more bright pink than they look in this picture. And I didn't think they made my butt lift (as claimed). Still, they are a great pant and I will be wearing them!