Size Chart
| Size | Head circumference |
| S/M | 55-57 cm (21.6-22.4 in) |
| M/L | 57-59 cm (22.4-23.2 in) |
| L/XL | 59-61 (23.2-24 in) |
Practical tip: When taking the measurement, position yourself at the strongest part of your head. This is located in the middle of the forehead, generally 1 cm above the eyebrows. Take the measurement with your head held straight and the tape horizontal.