Im 52 and 165 lbs I normally wear size 12 jeans so at first I ordered the 12-14 and it was too tight. So then I got the 16-18 and it fits great! Its very slimming with good butt/thigh coverage. The fabric is good quality. It smelled like plastic so I washed it by hand in cold water and a little soap. It didn't dry all that quickly though. A great buy overall. Im wearing it to the beach tomorrow!