Size Guide

US Size Inside circumference (mm)
2 41.7
3 42.9
3.5 45.5
4 46.8
4.5 48.0
5 49.3
5.5 50.6
6 51.9
6.5 53.1
7 54.4
7.5 55.7
8 57.0
8.5 58.3
9 59.5
10 62.1
10.5 63.4
11 64.6
11.5 65.9