These run very small. I am 5'2 and I35 and very fit. I normally alseays wear a small so I ordered the medium which they said was comparable to a small. They are so tiny. I can get them on but they are more comparable to an xs. If you have thick thighs and a booty then you want to make sure to size up at least 2 sizes. The material is good quality and nice and thick for workout purposes.