Sassy like my Masi - snap snap (;
To get the full circumference, double the "B" measurement.
| A | B | |
|---|---|---|
| Newborn | 15 in | 9.0 in |
| 6 Months | 16 in | 9.5 in |
| 12 Months | 18 in | 10 in |
| 18 Months | 20 in | 10 in |