Size up
"I’m so glad I trusted the other reviewer and went two sizes up. I normally wear a 2 here but I bought a 6 and it’s nearly perfect- a teensy bit big in the bust. A 4 would not have fit at all. The matching jacket is oddly true to size. I have a 6 dress and a 2 jacket. It was a real gamble buying these final sale but I hit the jackpot."