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The ultra-trail running shoe that's athlete-approved for max speed and endurance. Engineered to take you further, faster.

• Helion? HF hyperfoam dual midsole for rebound and stability
• Redesigned Missiongrip? outsole ?C On's most advanced yet
• Optimized with cutting-edge FEA (Finite Element Analysis)
• Lug geometry designed for traction and grip
• Quick-dry, breathable and supportive zoned Leno weave upper
• Engineered rocker maximizes running efficiency
• Extensively tested in lab and field at ultra-distances
• Cutting-edge tech for endurance and maintaining speed

Approved by the pros

Tried and tested at elite multi-day ultra trail events in the Alps, the Cloudultra Pro is engineered for maximum running efficiency. Because over extreme distances on mountain terrain, conserving energy is the key to keeping pace.

Go the (ultra) distance

Endurance requires consistency. This shoe has a dual-layer midsole of Helion? HF hyperfoam with a Speedboard? rebound system for perfectly calibrated energy return and stability. To keep your pace steady through all those ups and downs.

Advanced grip

Meet our most advanced grip ?C ever. The updated Missiongrip? outsole with a new lug profile developed with FEA (Finite Element Analysis) and sports science work with athletes. For unparalleled grip and traction.

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