Every child grows at different speeds, which is why we recommend viewing our size chart. We suggest that you pick weight against the age as the criteria for picking the size.
| Age | Weight (Kgs) | Height (cms) |
| New Born | up to 4.5 | up to 55 cms |
| 0 - 3 months | 4.5 - 6 | 55 - 60 |
| 3 - 6 months | 6 - 7.5 | 60 - 66 |
| 6 - 9 months | 7.5 - 9 | 66 - 71 |
| 9 - 12 months | 9 - 10 | 71 - 74 |
| 12 - 18 months | 10 - 11.5 | 74 - 81 |
| 18 - 24 months | 11.5 - 12.5 | 81 - 86 |
| 24 - 36 months | 12.5 - 14 | 86 - 95 |