International Size Guide
| Koio (US) | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| UK | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| EU | 35 | 36 | 37 | 38 | 39 | 40 | 41 |
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What is your
athletic shoe size? (US)
What is the width of your foot?
Thanks! We can make a recommendation based on your athletic sneaker size or you can add your dress shoe size to fine-tune the recommendation.
or
What is your dress shoe size? (US)
You're a Koio size
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