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Alpinestars Youth and Kids Footwear Sizing

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.
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.

How to Measure