US   

GERMAN   

CU

XXS  

4

15

46 – 47 mm

XS

5

15 3/4

49 – 50 mm

S

6

16 1/2

51 – 52 mm

M

7

17 1/4

54 – 55 mm

L

8

18

57 – 58 mm

XL

9

19

59 – 60 mm

XXL

10

20

62 – 63 mm