Size XS S M L XL XXL
a (chest width) 47.5 50.5 53.5 56.5 59.5 62.5
b (overall width) 65.5 68.5 71.5 73.5 75.5 77.5
c (arm length) 21.5 22.5 23.5 24.5 24.5 25.5