sizing

willaby sizing is based on average to slightly above average measurements
for the age indicated on the size label. 

Our clothing sizing corresponds to most other U.S. clothing brands as follows:

nb (newborn) = up to 3 months 
3m = 3-6 months
6m = 6-12 months
12m = 12-18 months
18m = 18-24 months
2y = 2-3 years
3y = 3-4 years
4y = 4-5 years
5y = 5-6 years 
6y = 6-7 years

 

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Approximate head circumferences for hat sizes are as follows:

- bonnets 

nb = 13.5 to 14"
0-3m = 14 to 15.5"
3-6m = 15.5 to 17"
6-12m = 17 to 18.5"
1-2y = 18.5 to 20"
2-4y = 20 to 21.5"
4-6y = 21.5 to 23"

- sun hats

0-6m = 14 to 17"
6-12m = 17 to 18.5"
1-3y = 18.5 to 20.5"
4-6y = 21.5 to 23"