Size Guide

EU Size Diameter (mm) UK Size US Size
50 15.9 mm K 5.5
51 16.3 mm L 6
52 16.7 mm M 6.5
53 17.1 mm N 6.75
54 17.5 mm O 7
55 17.9 mm P 7.5
56 18.3 mm Q 8
57 18.8 mm R 8.5
58 19.2 mm S 9
59 19.6 mm T 9.5
60 19.8 mm U 10
61 20.2 mm V 10.5