Elastic waistband in back.
Measurements are approximate and taken while laying flat across the front. Not doubled.
x-small: bust = 15"; waist = 12"; front length = 43"; back length = 48"
small: bust = 16"; waist = 13"; front length = 44"; back length = 48.5"
medium: bust = 17"; waist = 14"; front length = 45"; back length = 49.5"
large: bust = 18.5"; waist = 15"; front length = 45"; back length = 49.5"
x-large: bust = 19"; waist = 16"; front length = 46"; back length = 50"
xx-large: bust = 21"; waist = 17.5"; front length = 46"; back length = 51"
