Men's On Cloudultra Pro Book Engineered for the trail

Engineered for the trail

Solid rubber outsole provides additional forefoot stiffness at toe off

Flexible Fit - soft

Weight 181g

Men's On Cloudultra Pro Book Engineered for the trailUltra trail running shoe that's athlete approved for max speed and endurance. Engineered to take you further, faster. 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. Endurance requires consistency. This shoe has a dual layer midsole of Helion HF hyperfoam with a