Size Guide:
| Length | Chest (relaxed) |
Chest (Stretched) | |
| 6-12 months | 37cm | 20cm | 41cm |
| 1 year | 39cm | 21cm | 43cm |
| 2 years | 41cm | 22cm | 45cm |
| 3 years | 43cm | 23cm | 47cm |
| 4 years | 45cm | 24cm | 49cm |
| 5 years | 47cm | 25cm | 51cm |
| 6 years | 49cm | 26cm | 53cm |
Size Guide:
| Length | Chest (relaxed) |
Chest (Stretched) | |
| 6-12 months | 37cm | 20cm | 41cm |
| 1 year | 39cm | 21cm | 43cm |
| 2 years | 41cm | 22cm | 45cm |
| 3 years | 43cm | 23cm | 47cm |
| 4 years | 45cm | 24cm | 49cm |
| 5 years | 47cm | 25cm | 51cm |
| 6 years | 49cm | 26cm | 53cm |