Adidas Ultraboost 23 vs Salomon Speedcross 6 Sizing
Adidas Ultraboost 23 vs Salomon Speedcross 6: 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 Salomon Speedcross 6 take the same size?
Yes — keep your usual size. A US 10 in the Ultraboost 23 is about a US 10 in the Speedcross 6.
How they compare
Adidas Ultraboost 23 → Salomon Speedcross 6: The Adidas Ultraboost 23 runs true to size and has a slightly wider toe box compared to the Salomon Speedcross 6. Your US 10 in the Ultraboost 23 translates to the same size in the Speedcross 6.
Salomon Speedcross 6 → Adidas Ultraboost 23: The Salomon Speedcross 6 runs true to size and has a slightly narrower toe box compared to the Adidas Ultraboost 23. Your US 10 in the Speedcross 6 translates to the same size in the Ultraboost 23.
Spec comparison
| Spec | Adidas Ultraboost 23 | Salomon Speedcross 6 |
|---|---|---|
| Length Fit | True to Size | True to Size |
| Toe Box Profile | Wide | Standard |
| Arch Support | High | Moderate |
| Upper Material | Primeknit Textile | Textile |
Size conversion: Adidas Ultraboost 23 → Salomon Speedcross 6
If you wear these US sizes in the Ultraboost 23, here is the size to order in the Speedcross 6.
| Your US size in Ultraboost 23 | Recommended Speedcross 6 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 Salomon Speedcross 6?
The Adidas Ultraboost 23 and Salomon Speedcross 6 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 Speedcross 6?
Target a US 10 in the Speedcross 6. 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 Speedcross 6?
The Adidas Ultraboost 23 has a slightly wider toe box versus the Salomon Speedcross 6 (wide vs standard). Forefoot room is one of the biggest reasons two shoes at the same length still feel different.
How do the Ultraboost 23 and Speedcross 6 compare on support and material?
The Ultraboost 23 pairs high arch support with a primeknit textile upper; the Speedcross 6 has moderate support and a textile upper.
Try it: adjust the size and compare live
Verdict
The Adidas Ultraboost 23 runs true to size and has a slightly wider toe box compared to the Salomon Speedcross 6. Your US 10 in the Ultraboost 23 translates to the same size in the Speedcross 6.
| Spec | Adidas Ultraboost 23 | Salomon Speedcross 6 |
|---|---|---|
| Length Fit | True to Size | True to Size |
| Toe Box Profile | Wide | Standard |
| Arch Support | High | Moderate |
| Upper Material | Primeknit Textile | Textile |