| Inch Around |
cm |
Hat Size |
AGV/Bell |
THH |
Arai/Cyber |
Bieffe/Nolan |
| 20-1/4" |
51 |
6-3/8 |
|
|
|
|
| 20-1/2" |
53 |
6-1/2 |
|
|
XS |
|
| 20-7/8" |
54 |
6-5/8 |
|
|
XS |
|
| 21-1/4" |
55 |
6-3/4 |
XS |
XS |
Small |
XS |
| 21-5/8" |
56 |
6-7/8 |
XS |
XS |
Small |
Small |
| 22" |
57 |
7 |
Small |
Small |
Medium |
Small |
| 22-1/2" |
58 |
7-1/8 |
Small |
Small |
Medium |
Medium |
| 22-7/8" |
59 |
7-1/4 |
Medium |
Medium |
Large |
Medium |
| 23-1/4" |
60 |
7-3/8 |
Medium |
Medium |
Large |
Large |
| 23-5/8" |
61 |
7-1/2 |
Large |
Large |
XL |
Large |
| 24" |
62 |
7-5/8 |
Large |
Large |
XL |
XL |
| 24-1/2" |
63 |
7-3/4 |
XL |
XL |
XXL |
XL |
| 24-7/8" |
64 |
7-7/8 |
XL |
|
XXL |
XXL |
| 25-1/4" |
65 |
8 |
XXL |
|
XXXL |
|
| 25-5/8" |
66 |
8-1/8 |
|
|
XXXL |
|
| |
67 |
8-1/4 |
|
|
|
|
| Inch Around |
cm |
Hat Size |
Answer / KBC / MSR |
| 19-3/4" - 20-1/8" |
50-52 |
6-1/4 - 6-1/2 |
Childs S/M |
| 21-1/4" |
53-54 |
6-5/8 - 6-3/4 |
Childs L/XL |
| 21-1/8" |
51-52 |
6-3/8 - 6-1/2 |
XX-Small |
| 21-1/4" |
53-54 |
6-5/8 - 6-3/4 |
X-Small |
| 21-5/8" |
55-56 |
6-7/8 - 7 |
Small |
| 22-3/8" |
57-58 |
7-1/8 - 7-1/4 |
Medium |
| 23-1/8" |
59-60 |
7-3/8 - 7-1/2 |
Large |
| 23-1/2" |
61-62 |
7-5/8 - 7-3/4 |
X-Large |
| 24-1/4" |
63-64 |
7-7/8 - 8 |
XX-Large |
| 24-5/8" |
65-66 |
8-3/8 - 8-1/2 |
XXX-Large |
| Inch Around |
cm |
Hat Size |
Apex/Vega |
| 20-1/2" |
53 |
6-1/2 |
XS |
| 20-7/8" |
54 |
6-5/8 |
XS |
| 21-1/4" |
55 |
6-3/4 |
Small |
| 21-5/8" |
56 |
6-7/8 |
Small |
| 22" |
57 |
7 |
Medium |
| 22-1/2" |
58 |
7-1/8 |
Medium |
| 22-7/8" |
59 |
7-1/4 |
Large |
| 23-1/4" |
60 |
7-3/8 |
Large |
| 23-5/8" |
61 |
7-1/2 |
XL |
| 24" |
62 |
7-5/8 |
XL |
| 24-1/2" |
63 |
7-3/4 |
XXL |
| 24-7/8" |
64 |
7-7/8 |
XXL |
| 25-1/4" |
65 |
8 |
XXXL |
| 25-5/8" |
66 |
8-1/8 |
XXXL |
| Inch Around |
cm |
Hat Size |
Gmax |
Fly |
O'Neal |
| 20-1/2" |
53 |
6-1/2 |
XXS |
|
|
| 20-7/8" |
54 |
6-5/8 |
XXS |
XS |
|
| 21-1/4" |
55 |
6-3/4 |
XS |
XS |
|
| 21-5/8" |
56 |
6-7/8 |
XS |
Small |
|
| 22" |
57 |
7 |
Small |
Small |
Small |
| 22-3/8" |
58 |
7-1/8 |
Small |
Medium |
|
| 22-3/4" |
59 |
7-1/4 |
Medium |
Medium |
Medium |
| 23-1/8" |
60 |
7-3/8 |
Medium |
Large |
|
| 23-1/2" |
61 |
7-1/2 |
Large |
Large |
Large |
| 24" |
62 |
7-5/8 |
Large |
XL |
|
| 24-3/8" |
63 |
7-3/4 |
XL |
XL |
XL |
| 24-3/4" |
64 |
7-7/8 |
XL |
XXL |
|
| 25-1/8" |
65 |
8 |
XXL |
XXL |
XXL |
| Inch Around |
cm |
Hat Size |
HJC / Shoei / Aeon |
| 19-3/4" - 20-1/8" |
50-52 |
6-1/4 - 6-1/2 |
Youth S/M |
| 21-1/4" |
53-54 |
6-5/8 - 6-3/4 |
Youth L/XL |
| 21-1/8" |
51-52 |
6-3/8 - 6-1/2 |
XX-Small |
| 21-1/4" |
53-54 |
6-5/8 - 6-3/4 |
X-Small |
| 21-5/8" |
55-56 |
6-7/8 - 7 |
Small |
| 22-3/8" |
57-58 |
7-1/8 - 7-1/4 |
Medium |
| 23-1/8" |
59-60 |
7-3/8 - 7-1/2 |
Large |
| 23-1/2" |
61-62 |
7-5/8 - 7-3/4 |
X-Large |
| 24-1/4" |
63-64 |
7-7/8 - 8 |
XX-Large |
| 24-5/8" |
65-66 |
8-3/8 - 8-1/2 |
XXX-Large |
AFX, AGV, GREX, Icon, M2R, MDS, Moose, Nolan, Suomy, Thor and Z1R helmet fit guide
AFX, M2R, Thor and Z1R youth helmet fit guide
FOX Men's and Youth helmet sizes
HELMET With tape level, measure the widest point of your head, approximately 1 inch above your eyeborws.
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