Size	Age	Weight (lbs.)
Preemie/NB	Preemie/Newborn	up to 7 lbs.
0-3M	0 – 3 Months 	up to 9 lbs. 
3-6M 	3 – 6 Months 	10 – 16 lbs. 
6-12M 	6 – 12 Months 	17 – 20 lbs. 
12-18M	12 – 18 Months 	21 – 24 lbs 
18-24M	18 – 24 Months	25 – 27 lbs.