Size 0

7 or 22”

Size 1

7 1/8 or 22 3/8”

Size 2

7 1/4 or 22 3/4”

Size 3

7 3/8 or 23 1/8”

Size 4

7 1/2 or 23 1/2

Size 5

7 5/8 or 23 7/8”

Size 6

7 3/4 or 24 1/4”

For accurate sizing, Use cloth measuring tape to measure around where your hat would be comfortably worn.