Measurements are approximate and taken while laying flat across the front. Not doubled.
small: bust = 21.5"; length = 28.5"
medium: bust = 22"; length = 29"
large: bust = 24"; length = 29"
x-large: bust = 26.5"; length = 29.5"
xx-large: bust = 27"; length = 30"
xxx-large: bust = 28"; length = 31"