Measurements are approximate and taken while laying flat across the front. Not doubled.
small: bust = 18"; waist = 12"; length = 34"
medium: bust = 19"; waist = 13.5"; length = 34.75"
large: bust = 20"; waist = 15"; length = 35.5"
x-large: bust = 21"; waist = 16.5"; length = 36.25"
xx-large: bust = 22"; waist = 18"; length = 37"
xxx-large: bust = 23"; waist = 19.5"; length = 37.75"