| 3-6m | 6-12m | 12-18m | 18-24m | |
| Width | 9 3/8 | 9 7/8 | 10 3/8 | 10 7/8 |
| Fits Baby Length | 20 - 25 | 25 - 28 | 28 - 30 | 30 - 32 |
| Fits Baby Weight (lbs) | 12 - 16 | 16 - 22 | 22 - 27 | 27 - 30 |
| 3-6m | 6-12m | 12-18m | 18-24m | |
| Width | 22.9 | 22.9 | 25.4 | 25.4 |
| Fits Baby Length | 50.8 - 63.5 | 63.5 - 71.1 | 71.1 - 76.2 | 76.2 - 81.3 |
| Fits Baby Weight (lbs) | 12 - 16 | 16 - 22 | 22 - 27 | 27 - 30 |