AOSTA
AOSTA Baby Sizing:
| Size | Centimetres | Kilograms |
| 0-6 m | 49-64 cm | 3-7.5 kg |
| 3-12 m | 60-74 cm | 6-9 kg |
| 6-12 m | 64-74 cm | 7.5-9 kg |
| 12-18 m | 74-81 cm | 9-11 kg |
| 1-2 y | 74-85 cm | 9-12 kg |
| 2-3 y | 85-94 cm | 12-14 kg |
AOSTA Children Sizing:
| Size | Centimetres | Kilograms |
| S 0-1 y | 49-74 cm | 3-9 kg |
| M 1-2 y | 74-85 cm | 9-12 kg |
| L 2-3 y | 85-94 cm | 12-14 kg |
| XL 3-4 y | 94-102 cm | 14-16 kg |
| 2XL 4-5 y | 102-109 cm | 16-18 kg |