When trying to decide between two sizes, choose the larger size for a better fit.
| Size | Size/Age Range | Chest, 1" below armhole | HIP, 1" up from rib | Height | Weight |
| 0-6 Months | Newborn-6 months | ||||
| 6-12 Months | 6 Months-12 Months | 9.75 | 9.25 | 26.5 - 29.5" | 16.5 - 22 lbs |
| 12-18 Months | 12 Months-18 Months | 10.25 | 9.75 | 30 - 31.5" | 22.5 - 26lbs |
| 18-24 Months | 18 Months-24 Months | ||||
| One Size | |||||
| 2T | 2 Years | ||||
| 3T | 3 Years | ||||
| 4T | 4 Years |