Adidas Ultraboost 23 vs Hoka Clifton 9 Sizing
Adidas Ultraboost 23 vs Hoka Clifton 9: side-by-side fit, toe-box width and the exact size to order in each — they fit the same length. Free interactive sizing comparison.
Do the Adidas Ultraboost 23 and Hoka Clifton 9 take the same size?
Yes — keep your usual size. A US 10 in the Ultraboost 23 is about a US 10 in the Clifton 9.
How they compare
Adidas Ultraboost 23 → Hoka Clifton 9: The Adidas Ultraboost 23 runs true to size, similar in width to the Hoka Clifton 9. Your US 10 in the Ultraboost 23 translates to the same size in the Clifton 9.
Hoka Clifton 9 → Adidas Ultraboost 23: The Hoka Clifton 9 runs true to size, similar in width to the Adidas Ultraboost 23. Your US 10 in the Clifton 9 translates to the same size in the Ultraboost 23.
Spec comparison
| Spec | Adidas Ultraboost 23 | Hoka Clifton 9 |
|---|---|---|
| Length Fit | True to Size | True to Size |
| Toe Box Profile | Wide | Wide |
| Arch Support | High | High |
| Upper Material | Primeknit Textile | Mesh |
Size conversion: Adidas Ultraboost 23 → Hoka Clifton 9
If you wear these US sizes in the Ultraboost 23, here is the size to order in the Clifton 9.
| Your US size in Ultraboost 23 | Recommended Clifton 9 size |
|---|---|
| US 8 | US 8 |
| US 9 | US 9 |
| US 10 | US 10 |
| US 11 | US 11 |
| US 12 | US 12 |
Frequently asked questions
Which runs bigger, the Adidas Ultraboost 23 or the Hoka Clifton 9?
The Adidas Ultraboost 23 and Hoka Clifton 9 fit the same in length — both are true to size — so you can keep your usual size moving between them.
If I wear a US 10 in the Ultraboost 23, what size is the Clifton 9?
Target a US 10 in the Clifton 9. A US 9 in the Ultraboost 23 maps to about US 9, and a US 11 to about US 11.
Is the Ultraboost 23 wider than the Clifton 9?
The Adidas Ultraboost 23 has a similar toe box width versus the Hoka Clifton 9 (wide vs wide). Forefoot room is one of the biggest reasons two shoes at the same length still feel different.
How do the Ultraboost 23 and Clifton 9 compare on support and material?
The Ultraboost 23 pairs high arch support with a primeknit textile upper; the Clifton 9 has high support and a mesh upper.
Try it: adjust the size and compare live
Verdict
The Adidas Ultraboost 23 runs true to size, similar in width to the Hoka Clifton 9. Your US 10 in the Ultraboost 23 translates to the same size in the Clifton 9.
| Spec | Adidas Ultraboost 23 | Hoka Clifton 9 |
|---|---|---|
| Length Fit | True to Size | True to Size |
| Toe Box Profile | Wide | Wide |
| Arch Support | High | High |
| Upper Material | Primeknit Textile | Mesh |