ModCloth & Collectif Dolores poppy top with a sweetheart neckline and elastic sleeves that can be worn on or off the shoulder. Size XS, US size 4. Small fit, form-fitting fit. See measurements 97% cotton, 3% elastane, Material has slight stretch 2 decorative buttons in the front Hidden side zipper Approximate lat flat measurements without stretching: 15" armpit to armpit 10.5" waist 16" length