Size 6. I bought two of these dresses both a size 6 and size 8, and the 8 fit me perfectly, so I never took this one out of the bag. It’s a seriously gorgeous dress, both flirty and classy at the same time. Reformation dresses are known for being eco-friendly, high quality, and fashionable. Not that it matters, since the bag was never opened, but my home is smoke, perfume, and chemical free. I do not receive Poshmark notifications, but check my account once per day. Thanks for looking!