| Size |
Head circumference (in cm) |
Hair length |
Other |
| XS | < 54 | short to medium length | for children up to approx. 5 years |
| S | 54 - 57 | short to medium length | for thin, shoulder-length hair |
| M | 56 - 60 | short to medium length | for thin, longer hair |
| L | 59 - 62 | long | for thick or curly hair (hair clip has space) |
| XL | 59 - 62 | very long | for very thick and/or curly hair (also suitable for dreadlocks) |