HELMET SIZING CHART
In order for a helmet to protect properly and be the most comfortable, it must be sized to your head correctly. The best way to check sizing is to put the helmet on and see that the helmet feels snug equally all around your head. The helmet should not feel too tight or too loose at any particular point around your head.
Use the following charts to find the approximate size helmet for your head. Please remember that all head shapes are slightly different and the sizing chart is to be used as a starting guide to fit the correct helmet size to your head. Measure the head circumference one inch above the eyebrows and ears, then use this chart to find your approximate size.
CIRCUMFERENCE |
HELMET LETTER SIZE |
HAT SIZE |
Metric cm |
Inches |
50 cm |
19-11/16” |
Youth/S |
6-1/4” |
51 cm |
20-1/16” |
Youth/S |
6-3/8” |
50 cm |
19-11/16” |
Youth Small/Medium |
6-1/4” |
51 cm |
20-1/16” |
Youth Small/Medium |
6-3/8” |
52 cm |
20-7/16” |
Youth/M |
6-1/2” |
53 cm |
20-7/8” |
Youth/M |
6-5/8” |
52 cm |
20-7/16” |
Youth Large/XLarge |
6-1/2” |
53 cm |
20-7/8” |
Youth Large/XLarge |
6-5/8” |
53.5 cm |
21” |
Youth/L |
6-11/16” |
54 cm |
21-1/4” |
XS |
6-3/4” |
55 cm |
21-5/8” |
XS |
6-3/4” |
56 cm |
22” |
S |
7” |
57 cm |
22-7/16” |
S |
7-1/8” |
58 cm |
22-13/16” |
M |
7-1/4” |
59 cm |
23-1/4” |
M |
7-3/8” |
60 cm |
23-5/8” |
L |
7-1/2” |
61 cm |
24” |
L |
7-5/8” |
62 cm |
24-3/8” |
XL |
7-3/4” |
63 cm |
24-13/16” |
XL |
7-7/8” |
64 cm |
25-3/16” |
XXL |
8” |
65 cm |
25-5/8” |
XXL |
8-1/8” |
66 cm |
26” |
XXXL |
8-1/4” |
67 cm |
26-3/8” |
XXXL |
8-3/8” |
Suomy Helmet Sizing Chart |
| Size |
Centimeter |
Inches |
Hat Size |
| XSm |
53-54 |
20 1/2 - 20 7/8 |
6 1/2 - 6 5/8 |
| Sm |
55-56 |
21 1/4 - 21 5/8 |
6 3/4 - 6 7/8 |
| Md |
57-58 |
22 - 22 1/2 |
7 - 7 1/8 |
| Lg |
59-60 |
22 7/8 - 23 1/4 |
7 1/4 - 7 3/8 |
| XL |
61-62 |
23 5/8 - 24 |
7 1/2 - 7 5/8 |
| XXL |
63-64 |
24 1/2 - 24 7/8 |
7 3/4 - 7 7/8 |
| XXXL |
65-66 |
25 1/4 - 25 5/8 |
8 - 8 1/8 |
|
|
|
|
ICON
Helmets Size Chart |
| Hat Size |
Helmet Size |
Centimeters |
| 6 5/8 |
X-Small |
53 |
| 6 3/4 |
54 |
| 6 7/8 |
Small |
55 |
| 7 |
56 |
| 7 1/8 |
Medium |
57 |
| 7 1/4 |
58 |
| 7 3/8 |
Large |
59 |
| 7 1/2 |
60 |
| 7 5/8 |
X-Large |
61 |
| 7 3/4 |
62 |
| 7 7/8 |
XX-Large |
63 |
| 8 |
64 |
|
|
|
Fly Helmet Sizing |
| HAT SIZE |
MEASURED SIZE |
HELMET SIZE |
| 6-7/8 thru 7 |
21-5/8 thru 22 |
Small |
| 7 thru 7-1/4 |
22 thru 22-3/4 |
Medium |
| 7-1/4 thru 7-1/2 |
22-3/4 thru 23-1/2 |
Large |
| 7-1/2 thru 7-3/4 |
23-1/2 thru 24-3/8 |
X-Large |
|
