Alley Oop / Avery / Power Powder Helmets
| Size | S | M | L | XL | XXL |
| Measurement (cm) | 54 | 56 | 58 | 60 | 62 |
Foenix Helmet
| Size | S | M | L |
| Measurement (cm) | 53 - 55 | 55 - 58 | 58 - 61 |
Love Is All / Muse Helmets
| Size | S | M | L |
| Measurement (cm) | 54 - 56 | 57 - 58 | 59 - 61 |
Misty Girl / Happyland Helmets (Youth)
| Size | XXS | XS | S | M |
| Measurement (cm) | 50 | 52 | 54 | 56 |
