Size

 Length (in)

 Weight (lbs)

Preemie

up to 17.5 

up to 5.5

Newborn

 18 - 20

6 - 9

0 - 3 Months

 20.5 - 23.5

9 - 13

3 - 6 Months

 24 - 25.5

13 - 17

6 - 9 Months

 26 - 27.5

17 - 20 

9 - 12 Months 

 28 - 30.5

20 - 23