S
- armpit to armpit 19.5"; length 24.5" from center back to hem
M - armpit to armpit 21.5"; length 26" from center back to hem
L - armpit to armpit 22.5"; length 27 from center back to hem
XL - armpit to armpit 23.5"; length 28.5" from center back to hem
XXL - armpit to armpit 25"; length 29.5" from center back to hem