Size Guide:
| Length | Chest | |
| 0-3 months | 25.5cm | 23cm |
| 3-6 months | 28.5cm | 24cm |
| 6-12 months | 31.5cm | 25cm |
| 1 year | 35.5cm | 27cm |
| 2 years | 37.5cm | 28cm |
| 3 years | 39.5cm | 31cm |
| 4 years | 41.5cm | 32cm |
| 5 years | 43.5cm | 34cm |
Size Guide:
| Length | Chest | |
| 0-3 months | 25.5cm | 23cm |
| 3-6 months | 28.5cm | 24cm |
| 6-12 months | 31.5cm | 25cm |
| 1 year | 35.5cm | 27cm |
| 2 years | 37.5cm | 28cm |
| 3 years | 39.5cm | 31cm |
| 4 years | 41.5cm | 32cm |
| 5 years | 43.5cm | 34cm |