ULTRABOOST

Y3 Footwear Size Chart (Adidas)

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In Between Sizes?

For a tight fit, go one size down.

For a loose fit, go one size up.

How to Measure

1. Step on a piece of paper with your heel slightly touching a wall behind.
2. Mark the end of your longest toe on the paper (you might need a friend to help you) and measure from the wall to the marking.
3. Do the same for the other foot and compare measurements with our size chart to get the right size.