Measurements are approximate and taken while laying flat across the front. Not doubled.
x-small: bust = 17"; length = 48"
small: bust = 18"; length = 48.5"
medium: bust = 19"; length = 49"
large: bust = 20"; length = 49.5"
x-large: bust = 21"; length = 50"
xx-large: bust = 22"; length = 50.5"
xxx-large: bust = 23"; length = 51"