Measurements are approximate and taken while laying flat across the front. Not doubled.
x-small: bust = 15"; length = 17"
small: bust = 16"; length = 17.5"
medium: bust = 17"; length = 18"
large: bust = 18"; length = 19"
x-large: bust = 19"; length = 20"
xx-large: bust = 20"; length = 20.5"
xxx-large: bust = 21"; length = 21“
