When trying to decide between two sizes, choose the larger size for a better fit.
| Size | Chest | Waist | Height | Weight |
| 6-12 Months | 23" | 22" | 27" | 21 lbs |
| 12-18 Months | 24" | 23" | 30" | 26 lbs |
| 18-24 Months | 25" | 24" | 33" | 31 lbs |
| 2T | 26" | 34" | 3'5" | 36 lbs |
| 3T | 28" | 36" | 3'6" | 41 lbs |
| 4T | 30" | 38" | 3'8" | 46 lbs |
