ROYAL CANADIAN AIR FORCES GREEN FLYERS SHIRT 
SIZE 6742
MAY HAVE SIGNS OF WEAR OR FADING. HAS A STAIN PLEASE VIEW PHOTOS
How Canadian 4 digit shirt sizing works
*The first two digits indicate the approximate height of person in inches.
And the last two digits indicate the chest size in inches.
Size 6742
This shirt is best suited for someone approximately 67 inches tall with a 42 inch chest.