Head Measurement

Hat Size

Inches

Cm.

20 1/16

51

6 3/8

XS

20 1/2

52

6 1/2

20 7/8

53

6 5/8

21 1/4

54

6 3/4

S

21 5/8

55

6 7/8

22 1/16

56

7

M

22 7/16

57

7 1/8

22 13/16

58

7 1/4

L

23 1/4

59

7 3/8

23 5/8

60

7 1/2

XL

24

61

7 5/8

24 7/16

62

7 3/4

XXL

24 13/16

63

7 7/8