Measurements are approximate and taken while laying flat across the front. Not doubled.
x-small: bust = 19"; waist = 20"; length = 25"
small: bust = 20"; waist = 20.5"; length = 26"
medium: bust = 20.5"; waist = 21"; length = 26"
large: bust = 21.5"; waist = 22.5"; length = 27"
x-large: bust = 23.5"; waist = 24"; length = 27"