I’m 5’7”, 149lb, 27” waist, average bust, slightly bigger booty gal with a long torso, bought a medium… and it’s absolutely perfect! From the way it fits to the length… perfect! I was so excited as I have returned 6 other jumpsuits/rompers because the torso was so short! The fabric is light and moveable, yet fitted enough so you don’t look like you’re wearing a potato sack. Definitely could dress up or down! So excited!