Givenchy Runway Stars and Stripes Polo Short Sleeve. 100% Cotton. Regular Fit. Measurements by Size: XS pit-to-pit 19.25", shoulder 16", length 27" ; S pit-to-pit 19.75", shoulder 16.5", length 27.75" ; M pit-to-pit 20.75", shoulder 17", length 28" ; L pit-to-pit 22", shoulder 18.75", length 28.5" ; XL pit-to-pit 22.5", shoulder 19.25", length 28.5"