To find the ideal size, your foot measurement should be between the comfort size and boot inside length. Measure your foot by shifting your weight forward and measure from heel to the tip of your longest toe. "J" or "Kids" sizes typically include riders 4-7 years of age. "Youth" size riders range from age 7-12.
Alpinestars Youth and Kids Footwear Sizing
| Boot Size | US Size | Euro Size | Comfort Size (in) | Boot Inside Length (in) |
|---|---|---|---|---|
| Kids 10 | 10J | 28 | 6.85 | 7.16 |
| Kids 11 | 11J | 29 | 7.20 | 7.51 |
| Kids 12 | 12J | 30.5 | 7.55 | 7.87 |
| Kids 13 | 13J | 32 | 7.87 | 8.18 |
| Youth 1 | Y1 | 33 | 8.22 | 8.54 |
| Youth 2 | Y2 | 34 | 8.54 | 8.85 |
| Youth 3 | Y3 | 35.5 | 8.89 | 9.21 |
| Youth 4 | Y4 | 37 | 9.21 | 9.52 |
| Youth 5 | Y5 | 38 | 9.56 | 9.88 |
| Youth 6 | Y6 | 39 | 9.88 | 10.19 |
| Youth 7 | Y7 | 40.5 | 10.23 | 10.55 |
| Youth 8 | Y8 | 42 | 10.55 | 10.86 |
Sizing information is provided by the manufacturer and does not guarantee a perfect fit.