On Cloudultra 2

The On Cloudultra 2 is a trail running shoe designed for long distances and technical terrain, featuring a rockered midsole that promotes smooth heel-to-toe transitions and an aggressive outsole lug pattern for grip on dirt, rocks, and mud. It provides enhanced cushioning and stability compared to shorter-distance trail models in the On lineup. The shoe is aimed at ultramarathon runners and endurance trail athletes.

The Cloudultra 2 updates the original Cloudultra with refinements to the midsole cushioning, upper construction, and outsole durability for improved performance over long distances. It retains On's signature CloudTec cushioning pods while adjusting fit and breathability based on feedback from the first generation. Trail runners upgrading from the original will notice changes to the upper material and potentially improved lockdown.

While the On Cloudultra 2 is primarily designed as a trail running shoe, its aggressive outsole lugs, cushioned midsole, and stability features make it usable for fast hiking on moderate technical trails. The rockered geometry may feel less natural on steep, slow-paced terrain than a dedicated hiking boot. Some hikers appreciate the lighter weight, but the shoe sacrifices ankle support compared to traditional hiking footwear.

The On Cloudultra 2 features a moderate heel-to-toe drop consistent with On's trail running philosophy, designed to balance cushioning with a relatively natural foot strike. The shoe uses On's Helion superfoam in the midsole for energy return on varied terrain. Runners accustomed to zero-drop shoes should verify the exact offset before committing to long distances.