Measurements are approximate and taken while laying flat across the front. Not doubled.
TOP:
small: bust = 21.5"; length = 24-27"
medium: bust = 22.5"; length = 25-28"
large: bust = 23.5"; length = 26-29"
BOTTOM:
small: waist = 14.5"; length = 40"
medium: waist = 15"; length = 40.5"
large: waist = 15.5"; length = 41"