may want to size up one size.
Measurements are approximate and taken while laying flat across the front. Not doubled.
small: waist = 13"; length = 236.5"; in seam = 26"
medium: waist = 14"; length = 37.5"; in seam = 26.5"
large: waist = 15"; length = 38.5"; in seam = 26.5"
x-large: waist = 17"; length = 39"; in seam = 27"