Measurements are approximate and taken while laying flat across the front. Not doubled.
x-small: bust = 15"; length = 50"
small: bust = 16"; length = 50.5"
medium: bust = 17"; length = 51"
large: bust = 18"; length = 51.5"
x-large: bust = 18"; length = 51.5"
xx-large: bust = 18"; length = 51.5"