Measurements are approximate and taken while laying flat across the front. Not doubled.
small: bust = 21"; length = 27"
medium: bust = 22.5"; length = 27.5"
large: bust = 25"; length = 28"
x-large: bust = 26"; length = 29"
2x-large: bust = 27"; length = 31"
3x-large: bust = 28"; length = 32"
