age size weight (pounds) height (inches)
0-3 month 0-3 month 8-11 17-22
3-6 month 3-6 month 11-15 22-25
6-9 month 6-9 month 15-18 25-27.5
9-12 month 9-12 month 18-22 27.5-29
12-18 month 12-18 month 22-27 29-31
18-24 month 18-24 month 27-30 31-33
2 year 2 30-33 33-36
3 year 3 33-36 36-39
4 year 4  36-40 39-42
5 year 5 40-46 42-45
6 year 6 46-51 45-48
7 year 7 51-61 48-51
8 year 8 61-71 51-54
10 year 10 71-81 54-57