Size Guide UK US/CA FR/GER IT MM/IN H 3.75 47 7.00 14.90 I 4.25 48 8 15.30 J 4.75 49.50 9.50 15.70 K 5.25 50.50 10.50 16.10 L 5.75 52 12 16.50 M 6.25 53 13 16.90 N 6.75 54.50 14.50 17.30 O 7.25 55.75 15.75 17.70 P 7.75 57 17 18.10 Q 8.25 57 18 18.50 R 8.75 59.50 19.50 18.90 S 9.25 60.50 20.50 19.30 T 9.75 62 22 19.70 U 10.50 63 23 20.10 V 10.75 64.25 24.25 20.50 W 11.25 65.50 25.50 20.90 X 11.75 67 27 21.30 Y 12.25 68 28 21.70 Z 12.75 69.50 29.50 22.10