Measurements are approximate and taken while laying flat across the front. Not doubled.
TOP
small: bust/waist = 20"; length = 17"
medium: bust/waist = 21"; length = 17.5"
large: bust/waist = 22"; length = 18"
BOTTOM
small: waist = 18.5"; length = 41"
medium: waist = 19.5"; length = 42"
large: waist = 20.5"; length = 43"