| XS | S | M | L | XL | XXL | |
| A | 50cm/19.6" | 52.5 cm/20.6" | 55 cm/21.6" | 57.5 cm/22.6" | 60 cm/23.6" | 62.5 cm/24.6" |
| B | 58 cm/22.8" | 58.5 cm/23" | 59 cm/23.2" | 59.5 cm/23.4" | 60 cm/23.6" | 62.5 cm/23.8" |
| C | 49.5 cm/19.4" | 52 cm/20.4" | 54.5 cm/21.4" | 57 cm/22.4" | 59.5 cm/23.4" | 62 cm/24.4" |
