| Size | Chest (Across) | Sleeve (Short) | Sleeve (Long) | Waist |
| 3 - 6 Months | 18 - 19" | 3.25 - 3.5" | 6 - 6.5" | 18 - 19" |
| 12 - 24 Months | 20 - 21" | 3.75 - 4.75" | 7.5 - 8.5" | 19.5 - 20.5" |
| 2 Years | 21" | 4" | 8.5" | 20" |
| 3 Years | 22" | 4.25" | 9.5" | 20.75" |
| 4 Years / XS | 23" | 4.5" | 10.5" | 21.5" |
| 5 Years / XS | 24" | 4.75" | 11.5" | 22.5" |
| 6 Years / S | 25" | 5" | 12.5" | 23.5" |
| 8 Years / M | 27" | 5.5" | 13.5" | 25" |
| 10 Years / M | 29" | 6" | 14.5" | 26" |
| 12 Years / L | 31" | 6.5" | 15.5" | 27" |