Size Guide
Size Comparison Chart
Standard (US) Size | Internal Diameter | European Size |
---|---|---|
3.5 | 14.4 mm | 46 |
4 | 14.8 mm | 47 |
4.5 | 15.2 mm | 48 |
5 | 15.6 mm | 50 |
5.5 | 16.0 mm | 51 |
6 | 16.45 mm | 52 |
6.5 | 16.9 mm | 53 |
7 | 17.3 mm | 54 |
7.5 | 17.7 mm | 56 |
8 | 18.2 mm | 57 |
8.5 | 18.6 mm | 58 |
9 | 19.0 mm | 60 |
9.5 | 19.4 mm | 61 |
10 | 19.8 mm | 62 |
10.5 | 20.2 mm | 64 |
11 | 20.6 mm | 65 |
11.5 | 21.0 mm | 66 |
12 | 21.4 mm | 67 |
12.5 | 21.8 mm | 69 |
13 | 22.2 mm | 70 |
13.5 | 22.6 mm | 71 |