Hat Size

Head Size in Inches
(Circumference)

Head Size in Centimeters

Flexfit Hat Size

6 5/8

21

53

XS

6 3/4

21 1/4

54

XS, S/M

6 7/8

21 3/4

55

XS, S/M

7

22

56

XS, S/M

7 1/8

22 1/2

57

XS, S/M, L/XL

7 1/4

22 3/4

58

S/M, LXL

7 3/8

23

59

L/XL, XXL

7 1/2

23 1/2

60

L/XL, XXL

7 5/8

24

61

L/XL, XXL

7 3/4

24 3/8

62

XXL

7 7/8

24 7/8

63

XXL

8

25 1/8

64

XXL