SS26
Men
| UK 3.5 | US 4 | EU 36 | CM 23,5 |
| UK 4 | US 4.5 | EU 37 | CM 24 |
| UK 4.5 | US 5 | EU 37.5 | CM 24 |
| UK 5 | US 5.5 | EU 38 | CM 24 |
| UK 5,5 | US 6 | EU 38,5 | CM 24 |
| UK 6 | US 6.5 | EU 39.5 | CM 24.5 |
| UK 6.5 | US 7 | EU 40 | CM 25 |
| UK 7 | US 7.5 | EU 40.5 | CM 25.5 |
| UK 7.5 | US 8 | EU 41.5 | CM 26 |
| UK 8 | US 8.5 | EU 42 | CM 26.5 |
| UK 8.5 | US 9 | EU 42.5 | CM 27 |
| UK 9 | US 9.5 | EU 43 | CM 27.5 |
| UK 9.5 | US 10 | EU 44 | CM 28 |
| UK 10 | US 10.5 | EU 44.5 | CM 28.5 |
| UK 10.5 | US 11 | EU 45 | CM 29 |
| UK 11 | US 11.5 | EU 45.5 | CM 29.5 |
| UK 11.5 | US 12 | EU 46.5 | CM 30 |
| UK 12 | US 12.5 |
Since their launch in 2001, the 991 has been synonymous with superlative quality. The first 99X model of the 21st century, the original 991 set the standard for modern running shoe design. The Made in UK 991v2 represents a new pinnacle, an evolved version of this true icon. The most notable technological change is the addition of Full-Length FuelCell cushioning. This update reflects the evolved yet familiar approach to the upper, pairing updated construction with classic features like ABZORB SBS pods and ENCAP cushioning.
