The Sydney Sizing Chart

 

XS S M L XL
Chest 19-1/2 20-1/2 22-1/4 23-3/4 26-1/4
Center Back Length
19-1/2 20 20-1/2 21 21-3/4
Sleeve Length
22 22-1/4 22-1/2 22-3/4 23