I'm 5'2", 130 lbs., and I got the small. Being petite, it's always nice when I don't have to hem dresses. This dress falls right at my heel, so I can wear small platforms and be fine. Also fair warning, the slit comes to my mid-thigh which I do like but others may not be expecting such a high slit. I love the pockets! The material is thinner than other dresses I have in the same style (but not see through), meaning my nipples do show through a little so if you don't want yours to show you'll stiSee full review