Merrell Moab Speed 2 Hiking Shoe vs On Cloudultra 2 (Men's US9)
Weight and specs compared for 2026 — and which one to choose.
Men's standard mesh version, 12oz per shoe, lightweight hiking performance
Full details →Cushioned all-terrain trail shoe with Helion superfoam and Missiongrip. 289g, designed for ultrarunning and long-distance hiking on variable terrain
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Merrell Moab Speed 2 Hiking Shoe vs On Cloudultra 2 (Men's US9): which should you buy?
If saving weight is your priority, the On Cloudultra 2 (Men's US9) wins — at 289 g it is 51 g (15%) lighter than the Merrell Moab Speed 2 Hiking Shoe (340 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.