| Size | Fit for | Head circumference |
|---|---|---|
| S/XS | Children up to 1 year | 39-45 cm |
| S | Children up to 2 years | 42-48 cm |
| M/S | Children up to 5 years | 45-51 cm |
| M | Children, teenagers | 48-54 cm |
| L/M | Teenagers, adults | 51-57 cm |
| L | Adults (most) | 54-60 cm |
| XL/L | Adults | 57-63 cm |
| XL | Adults | 60-66 cm |