Alpinestars Sizing Chart
When measuring your foot for Alpinestars Boots flatten your foot by shifting your weight forward. Use a ruler or tape measure to measure your foot from the heel to the top of your longest toe.
| US Size | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Euro Size | 38 | 39 | 40.5 | 42 | 43 | 44.5 | 45.5 | 47 | 48 | 49.5 | 51 | 52 |
| Japan Size | 24 | 25 | 25.5 | 26.5 | 27.5 | 29 | 29.5 | 30.5 | 31.5 | 32.5 | 33.5 | 34.5 |
| Inside CM | 25 | 25 | 25.5 | 26.5 | 27.5 | 29 | 29.5 | 30.5 | 31.5 | 32.5 | 33.5 | 34.5 |
| Inside Inches | 9.5 | 9.8 | 10 | 10.4 | 10.8 | 11.4 | 11.6 | 12 | 12.4 | 12.8 | 13.1 | 13.6 |
