Women's Hawaiian Shirt Size Chart (Measurement is in inches. Shirts are laid flat and measured. Width=armpit to armpit; Length=top of the collar to the bottom of the shirt; Please measure your own shirt and compare to the chart for good fit):
Size S : Shoulder=15½ Width=21 Length= 28
Size M: Shoulder=16½ Width=22 Length=28½
Size L: Shoulder=17 Width=23 Length=29½
Size XL: Shoulder=17½ Width=24 Length=30
Size 2XL: Shoulder=18½ Width=25 Length=30½