To find the most suitable size, measure your head by running a tape measure around the temples and forehead. Choose the size that closest matches your measurement.
If you don't have a tape measure you can use a piece of string and measure it against a ruler or similar.
MEASUREMENTS:
SIZE | MEASUREMENT |
SMALL | 54cm |
MEDIUM | 56cm |
LARGE | 57cm |
X-LARGE | 59cm |