On Running Cloudultra 2 Trail Shoe vs Salomon Thundercross
Weight and specs compared for 2026 — and which one to choose.
Trail running shoe at 289g per shoe with Helion superfoam and Missiongrip tread, versatile for both ultrarunning and hiking.
Check price Full details →Versatile trail running shoe with aggressive Contagrip lugs and a Quicklace system for grip and security on technical trails.
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On Running Cloudultra 2 Trail Shoe vs Salomon Thundercross: which should you buy?
If saving weight is your priority, the On Running Cloudultra 2 Trail Shoe wins — at 289 g it is 1 g (0%) lighter than the Salomon Thundercross (290 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.
See where both rank against everything else in this category on the lightest footwear page, or browse the full gear weight database.