Shirt measurements are approximately as follows:
1st shirt adult M: W=55cm/L=70cm, L: W=cm/L=cm, XL: W=58cm/L=74cm
2nd shirt adult M: W=51cm/L=66cm, L: W=cm/L=cm, XL: W=54cm/L=70cm
(W=width measured across chest / L=length measured down the back)