| Size | Approximate Height | Chest Height | Total Length | Sleeve Length | Leg Length |
| 0 months | 50-56 cm | 49 cm | 44 cm | 9 cm | 5.8 cm |
| 1 month | 56-62 cm | 50 cm | 46 cm | 9.5 cm | 6 cm |
| 3 months | 62-68 cm | 51 cm | 48 cm | 10 cm | 6.3 cm |
| 6 months | 68-74 cm | 53 cm | 52 cm | 11 cm | 6.8 cm |
| 9 months | 74-80 cm | 54 cm | 55 cm | 12 cm | 7 cm |
| 12 months | 80-86 cm | 56 cm | 58 cm | 13 cm | 7.3 cm |
| 18 months | 86-92 cm | 59 cm | 64 cm | 14 cm | 7.8 cm |
| 24 months | 92-98 cm | 62 cm | 70 cm | 15 cm | 8.3 cm |

How to choose the size? Select the size according to the baby's approximate height. If you are in doubt between two sizes, choose the larger one for greater comfort and durability.