Leegeel wish you enjoy your party ! Pls see the size information below: Size L : 1/2 Chest–2″below armhole 15 3/4″,1/2 wasit width 13 3/4″ relaxed and 18 7/8″ stretched. Size XL: 1/2 Chest–2″below armhole 17 1/2″,1/2 wasit width 15 1/4″ relaxed and 20 1/2″ stretched. Any question or issue please feel free to contact with me, thanks !