small

middle

large

1.Circumference

21-21.5''

22"-22.5"

22.75"-23"

2.Front to Nape

13-13.5"

13.5-14"

14-14.5"

3.Ear to ear forehead

11.5"

12"

12.5"

4.Ear to ear over top head

12"

12.5"

13"

5.Temple to temple round back

14.5"

15"

16"

6.Nape of Neck

4.5"

5"

6"