keen
Our tool compares official keen size charts to find your perfect size. No measuring needed.
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All keen Model Specific Sizing Guides
keen :: Official :: male
Unsure about your size? Find your size or check out our detailed guide on how to measure your feet.
Fit Type: True to size
| Foot Length (mm) | EU |
|---|---|
| 244 | 39.5 |
| 248 | 40 |
| 254 | 40.5 |
| 257 | 41 |
| 260 | 42 |
| 267 | 42.5 |
| 270 | 43 |
| 273 | 44 |
| 279 | 44.5 |
| 283 | 45 |
| 286 | 46 |
| 294 | 47 |
| 302 | 47.5 |
| 310 | 48 |
| 318 | 48.5 |
| 326 | 49 |
Based On: keen :: Official :: male
Last updated: 2025-07-17 11:28:48
Frequently Asked Questions About keen Sizing
No, keen sizing varies by model. Some keen styles run small while others run large. Check our model-specific guides below for exact fit information.
Use our keen size conversion charts above. keen uses standard European sizing. EU 40 = US 7 (women) or US 7.5 (men) = UK 6.5. For exact conversions, see the charts on this page.
keen uses European sizing which tends to be consistent with other European brands. Compared to Nike or Adidas, you may need to check each model as fit varies. Use our size finder tool for accurate cross-brand comparison.
keen fit varies by model. Browse our model-specific sizing guides below to see which keen shoes run small, true to size, or large. Each guide includes exact fit adjustments.