This dress fits like a glove! It hugs you in all of the right places, so I didn't need to wear Spanx with it because it does the sucking and tucking for you. I LOVE that you can wear a bra with it - I'm just not a big fan of going braless, especially when I know I'm going to be dancing all night. The bra didn't show at all. I wore this dress to a formal event in mid-January, so I needed black tights with it, but they looked great! I got tons of compliments all night.