I am 59 140 lbs. I ordered a small based off other reviews. I will be returning them and getting a medium. The top fits well but then the thighs and calves especially are way too tight and look awkward because of it. It also makes me feel like if i move wrong Ill rip them at the seams (see photo). Theyre a silkier material than what i expected, very comfy. And i have bright red underwear on under in the photo so they're definitely NOT cheap see through material! Other than the ssizing i love these!