Patagonia: Sizing Guide
| Age | US Size | Weight | Length |
| Newborn | NB-7lb | up to 3 kg | up to 51 cm |
| 0-3 months | 0-3M | 3-5 kg | 53-61 cm |
| 3-6 months | 3-6M | 7-9 kg | 64-69 cm |
| 6-12 months | 6-12M | 9-11 kg | 71-79 cm |
| 12-18 months | 12-18M | 11-13 kg | 79-84 cm |
| 18-24 months | 18-24M | 13-15 kg | 84-89 cm |
| 2 years | 2T | 13-15 kg | 89 cm |
| 3 years | 3T | 15-16 kg | 97 cm |
| 4 years | 4T | 16-18 kg | 104 cm |
| 5 years | 5T | 18-19 kg | 111 cm |