Size Chart
0-3 mo.	5-11 lbs	19-23"
3-6 mo.	12-15 lbs	24-26"
6-9 mo.	16-18 lbs	27-28"
12 mo.	19-20 lbs	29-30"
18 mo.	21-23 lbs	31-32"
24 mo.	24-28 lbs	33-35"

Size chart is a general guide. It may include sizes that are unavailable for this item.