| Preemie | up to 7 lbs. | |
| Newborn | 0 - 6 Months | up to 13 lbs. |
| Small | 6 - 12 Months | 14 - 18 lbs. |
| Medium | 12 - 18 Months | 19 - 26 lbs. |
| Large | 18 - 24 Months | 27 - 34 lbs. |
"Sleep and Play Baby Grow" Closed-Toe Long Johns - Click here to see items
Small = 3 Months
Medium = 6 Months
Large = 9 Months