This is a black short sleeve dress by Madewell. It has a keyhole back with a hook and eye closure. Pullover style. Ruffle short sleeves. It is new with tags. It is a size medium. Measurements armpit to armpit 20 inches. Sleeve length 12 inches. Across waist 19 1/2 inches. Hip to hip 21 1/2 inches. Length 35 inches. Measurements are approximate