Allbirds
True to SizeAllbirds fits true to size and is offered only in whole sizes, with half sizes rounded up by the brand's official guidance. The Wool Runner, Tree Dasher, and Tree Runner all wear your normal whole size. The merino and eucalyptus uppers stretch slightly with wear, so the initial fit should feel just snug. The last is built around a standard-width foot.
Allbirds is generally true to size. Order your usual size.
Men's Size Chart
| US | EU | UK | CM |
|---|---|---|---|
| 6 | 38 | 5 | 24.1 |
| 6.5 | 38.5 | 5.5 | 24.4 |
| 7 | 39 | 6 | 24.8 |
| 7.5 | 39.5 | 6.5 | 25.1 |
| 8 | 40 | 7 | 25.4 |
| 8.5 | 41 | 7.5 | 25.7 |
| 9 | 41.5 | 8 | 26 |
| 9.5 | 42 | 8.5 | 26.4 |
| 10 | 42.5 | 9 | 26.7 |
| 10.5 | 43 | 9.5 | 27 |
| 11 | 43.5 | 10 | 27.3 |
| 12 | 44.5 | 11 | 28 |
| 13 | 46 | 12 | 28.6 |
| 15 | 48 | 14 | 30.2 |
Women's Size Chart
| US | EU | UK | CM |
|---|---|---|---|
| 5 | 35 | 2.5 | 22 |
| 5.5 | 35.5 | 3 | 22.4 |
| 6 | 36 | 3.5 | 22.9 |
| 6.5 | 36.5 | 4 | 23.3 |
| 7 | 37 | 4.5 | 23.8 |
| 7.5 | 37.5 | 5 | 24.1 |
| 8 | 38 | 5.5 | 24.6 |
| 8.5 | 38.5 | 6 | 25 |
| 9 | 39 | 6.5 | 25.4 |
| 9.5 | 39.5 | 7 | 25.7 |
| 10 | 40 | 7.5 | 26.2 |
| 11 | 41 | 8.5 | 27.1 |
| 12 | 42 | 9.5 | 28 |
How Allbirds compares
| Brand | Sizing |
|---|---|
| Allbirds | True to Size |
| COS | True to Size |
| Common Projects | Runs Small |
Common questions about Allbirds sizing
Does Allbirds run small, true to size, or large?
Allbirds fits true to size.
What width do Allbirds shoes come in?
Allbirds shoes are offered in standard width. Check individual product pages for wide-width availability.
How does Allbirds sizing compare to Nike?
Allbirds runs larger than Nike. If you size up at Nike, your usual size at Allbirds should fit cleanly.
Can I return Allbirds shoes if the size is wrong?
Most Allbirds retailers offer free returns on unworn shoes within 30 days. Check the retailer's return policy before ordering, as third-party sellers may differ.