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Size guide
Measure your foot from heel to longest toe, standing, at the end of the day. Use the longer foot.
| EU | UK | US (men) | Foot cm |
|---|---|---|---|
| 38 | 5 | 5.5 | 24 |
| 39 | 6 | 6.5 | 24.5 |
| 40 | 6.5 | 7 | 25 |
| 41 | 7.5 | 8 | 26 |
| 42 | 8 | 8.5 | 26.5 |
| 43 | 9 | 9.5 | 27.5 |
| 44 | 9.5 | 10 | 28 |
| 45 | 10.5 | 11 | 29 |
| 46 | 11 | 12 | 29.5 |
General reference conversion. HELIX's final size run and fit are not yet confirmed — include your usual size in your quote and the team will advise.