Size tag worn off so please review measurements below. For reference, mannequin is about a size 4, and this is a little big on it, so I would say a size 6. (Other mannequin measurements are a 33.5” bust and 25” waist.) Actual dress is about 16” across at the very top (so about armpit to armpit); 14” across at waist. . Straight across chest with no straps or sleeves, gathers at left side, fit and flare A-line, zips in back. Lightweight dress. Very good pre-owned condition, but wrinkled.