Originally launched in 2013, the XT-6 is the preferred footwear of world-class athletes for ultra-distance races under harsh conditions. It now returns with updated colors and materials, but the same level of cushioning, durability and descent-control.
- + Lining and Inlay Sole Textile
- + Outsole Rubber
- + Synthetic/Textile Upper
- + Quicklace Lacing System
| FOOT LENGTH (CM) | UK | EUR | JP |
| 25.5cm | 7.5 | 41 1/3 | 26 |
| 26cm | 8 | 42 | 26.5 |
| 26.5cm | 8.5 | 42 2/3 | 27 |
| 27cm | 9 | 43 1/3 | 27.5 |
| 27.5cm | 9.5 | 44 | 28 |
| 28cm | 10 | 44 2/3 | 28.5 |