Use this as a general guide — fit can vary slightly between styles, so check individual product descriptions for notes.
| Size | Age (approx.) | Weight (approx.) |
|---|---|---|
| Newborn | 0–1 month | Up to 4 kg |
| 0–3 Months | 0–3 months | 4–6 kg |
| 3–6 Months | 3–6 months | 6–8 kg |
| 6–9 Months | 6–9 months | 8–9 kg |
| 9–12 Months | 9–12 months | 9–10.5 kg |
| 12–18 Months | 12–18 months | 10.5–12 kg |
| 18–24 Months | 18–24 months | 12–13.5 kg |
If your baby is between two sizes, we generally recommend choosing the larger size for extra comfort and room to grow.