Lucky Brand maxi dress floral size medium

Beautiful, like new maxi dress from Lucky Brand. Purchased online and it was just too large for me (make sure to check measurements!). Double v-neck with drawstring waist to create a blousey top before flowing to a floor length hem. Dress is fully lined. Laid flat, armpit to armpit measurement is 19” inches and length is approximately 57” inches. Size medium, but I would say fits like a large.