UK SIZE | EURO SIZE | US SIZE | Calf Size in mm | Shaft Size in mm |
3.5 | 36 | 5 | 370 | 390 |
4.5 | 37 | 6 | 370 | 390 |
5 | 38 | 7 | 370 | 390 |
6 | 39 | 8 | 380 | 390 |
6.5 | 40 | 9 | 380 | 400 |
7 | 41 | 10 | 380 | 400 |
8 | 42 | 11 | 400 | 410 |
8.5 | 43 | 12 | 400 | 410 |
9.5 | 44 | 13 | 400 | 410 |
10.5 | 45 | 14 | 400 | 410 |
11 | 46 | 15 | 420 | 410 |
12 | 47 | 16 | 420 | 410 |
12.5 | 48 | 17 | 420 | 410 |