Old Navy sleeveless mod style mini dress

Old Navy sleeveless black mod style mini dress, very cute with tights and boots or as bathing suit cover for summer. Cute button detail on left shoulder. Marked XS, I prefer Medium/Small clothes (5'4" 110) for comfort, but I can still wear this dress with slight snugness under the arms. 58% cotton, 42% Linen. Measures 31.5in long, 16in wide (armpit to armpit), 20in wide across bottom hem- All measurements taken while lying flat.