Arc'teryx to Clarks shoe size
The short answer
Arc'teryx 5.5 is Clarks 5½ by the two brands' own charts. 8 of 16 Arc'teryx sizes land on a different label at Clarks.
At least one of the two brands publishes no foot length, so the rows line up the US size both charts print. Treat it as the label conversion, not a fit.
| Arc'teryx | Arc'teryx builds it for | Clarks, by chart | Same label | Clarks builds it for | Clarks also prints |
|---|---|---|---|---|---|
| 5 | not published | 5 | not published | foot length 21.6 cm | UK 2.5 |
| 5.5 | not published | 5½ | not published | foot length 22.1 cm | UK 3 |
| 6 | not published | 6 | not published | foot length 22.6 cm | UK 3.5 |
| 6.5 | not published | 6½ | not published | foot length 23.1 cm | UK 4 |
| 7 | not published | 7 | not published | foot length 23.6 cm | UK 4.5 |
| 7.5 | not published | 7½ | not published | foot length 23.9 cm | UK 5 |
| 8 | not published | 8 | not published | foot length 24.1 cm | UK 5.5 |
| 8.5 | not published | 8½ | not published | foot length 24.6 cm | UK 6 |
| 9 | not published | 9 | not published | foot length 25.1 cm | UK 6.5 |
| 9.5 | not published | 9½ | not published | foot length 25.4 cm | UK 7 |
| 10 | not published | 10 | not published | foot length 25.9 cm | UK 7.5 |
| 10.5 | not published | 10½ | not published | foot length 26.2 cm | UK 8 |
| 11 | not published | 11 | not published | foot length 26.7 cm | UK 8.5 |
| 11.5 | not published | 11 or 12 | not published | foot length 26.7 cm | UK 8.5 |
| 12 | not published | 12 | not published | foot length 27.7 cm | UK 9.5 |
| 12.5 | not published | 12 | not published | foot length 27.7 cm | UK 9.5 |
| 13 | not published | not made | not published | not published | not published |
| 13.5 | not published | not made | not published | not published | not published |
| 14 | not published | not made | not published | not published | not published |
| 14.5 | not published | not made | not published | not published | not published |
| 15 | not published | not made | not published | not published | not published |
What wearers say
Charts describe a garment. People who own both brands describe a fit, and their answer ranks above this table once five of them stand behind it. Pick your size in the converter to see whether there are enough yet.
Sources
- Arc'teryx size guide, read on 2026-09-18.
- Clarks size guide, read on 2026-09-18.