AR-10 III / HX-10 III

SIZE CENTIMETER HAT SIZE INCHES
XS 54-55 6 3/4 - 6 7/8 21 1/4 - 21 5/8
S 56-57 7 - 7 1/8 22 - 22 1/2
M 58-59 7 1/4 - 7 3/8 22 7/8 - 23 1/4
L 60-61 7 1/2 - 7 5/8 23 5/8 - 24
XL 62-63 7 3/4 - 7 7/8 24 3/8 - 24 3/4
XXL 64-65 8 - 8 1/8 25 1/4 - 25 5/8

 

Others

SIZE CENTIMETER HAT SIZE INCHES
XS 53-54 6 5/8 - 6 3/4 20 7/8 - 21 1/4
S 55-56 6 7/8 - 7 21 5/8 - 22
M 57-58 7 1/8 - 7 1/4 22 1/2 - 22 7/8
L 59-60 7 3/8 - 7 1/2 23 1/4 - 23 5/8
XL 61-62 7 5/8 - 7 3/4 24 - 24 3/8
XXL 63-64 7 7/8 - 8 24 3/4 - 25 1/4