Measurements are approximate and taken while laying flat across the front. Not doubled.
small: bust = 18"; waist = 13"; length = 50"
medium: bust = 19"; waist = 14"; length = 50"
large: bust = 20"; waist = 14.5"; length = 50"
x-large: bust = 22"; waist = 15"; length = 50"
xx-large: bust = 24"; waist = 16"; length = 51"
xxx-large: bust = 25"; waist = 17.5"; length = 51"
