J. Crew Collection drapey keyhole dress size 0

Blue drapey keyhole dress with pockets! Ivory dress shown for fit. I usually wear 2-4 in J crew and sized down for this dress. Excellent used condition. Love this, but need to downsize. Measurements are taken flat. Please note, there may be a margin of error. Pit to pit-17” Waist-14” Length-41”