USA Hat Size         USA                        Inches                 CM 

Small                   6 3/4" - 6 7/8"            21 1/8"-21 1/2"      54-55

Medium               7" - 7 1/8"                   21 7/8"-22 1/4"      56-57

Large                  7 1/4" - 7 3/8"             22 5/8"-23"            58-59

X Large               7 1/2" - 7 5/8"            23 1/2"-23 7/8"       60-61

XX Large            7 3/4"- 7 7/8"              24 1/4"-24 5/8"       62-63

To Determine Hat Size, use a tape measure.  Measure around the circumference of your head using the tape measure.  The measurement should be taken at the widest point of the head slightly above the ears.  If your measurement falls between sizes order one size up. 

 USA Hat Size         USA                        Inches                 CM 

Small                   6 3/4" - 6 7/8"            21 1/8"-21 1/2"      54-55

Medium               7" - 7 1/8"                   21 7/8"-22 1/4"      56-57

Large                  7 1/4" - 7 3/8"             22 5/8"-23"            58-59

X Large               7 1/2" - 7 5/8"            23 1/2"-23 7/8"       60-61

XX Large            7 3/4"- 7 7/8"              24 1/4"-24 5/8"       62-63

To Determine Hat Size, use a tape measure.  Measure around the circumference of your head using the tape measure.  The measurement should be taken at the widest point of the head slightly above the ears.  If your measurement falls between sizes order one size up.