I ordered these in an XL and probably could have used a large instead as the lace trim at the very top is a little big but the elastic right under if fits tight enough to still keep them up. I’m 5’7 and 130lbs. I purchased these to wear under a leather romper to add a lace detail to the bottom of the romper and they are thin enough and not too bulky to wear under other clothing if you wish.

This item doesn’t stretch at all. An xl fits like a M