Getting the right fit for your head.

This chart is meant to be used as a guide only. Try the helmet first before buying it.
Measure the circumference of your head using a fabric ruler.  Place it approximately on inch (2.5cm) above the eyebrows and above the ears.
Example: If the measuring tape reads 23" (60cm), your helmet size would be falling in the LARGE category.
Circumference (inches) Helmet Size Hat Size Circumference (centimeters)
19-3/4" - 20-1/8" Junior S/M 6-1/4 - 6-1/2 50-52
20-3/8" - 21-1/4" Junior L/X-L 6-5/8 - 6-3/4 53-54
21-1/8" XX-Small 6-3/8 - 6-1/2 51-52
20-7/8" - 21-1/4" X-Small 6-5/8 - 6-3/4 53-54
21-5/8" - 22" Small 6-7/8 - 7 55-57
22-3/8" - 22-3/4" Medium 7-1/8 - 7-1/4 58-59
23-1/8" - 23-5/8" Large 7-3/8 - 7-1/2 60-61
23-1/2" - 24-1/8" X-Large 7-5/8 - 7-3/4 62-63
24-1/4" - 25" XX-Large 7-7/8 - 8 64-65
25-1/8" - 25-3/4" XXX-Large 8-3/8 - 8-1/2 66-67