First of all, I love these. So cute, hug the booty just right. I usually wear a size 7 and no matter if I go up and down a couple of pounds, a size 7 is my go to but, trust me when I say go down just 1 size. They are loose and give me a lot of space from my but and low back to the pants. I'll still keep them cuz I am too lazy to return them. But please size down. They have a lot of stretch. I an 5'4 weight 133. I have hips, booty, and legs for days.