Inov-8 Trailfly Ultra G 280 (Men's UK8) vs Topo Athletic Terraventure 5
Weight and specs compared for 2026 — and which one to choose.
Lightweight trail running shoe with Flyspeed nitrogen-infused foam. 280g, graphene grip outsole for technical terrain. Ultrarunning focused design
Full details →Lightweight trail running and hiking shoe at 10.3 ounces (men's US9). Rugged yet minimal design built for technical terrain versatility.
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Inov-8 Trailfly Ultra G 280 (Men's UK8) vs Topo Athletic Terraventure 5: which should you buy?
If saving weight is your priority, the Inov-8 Trailfly Ultra G 280 (Men's UK8) wins — at 280 g it is 12 g (4%) lighter than the Topo Athletic Terraventure 5 (292 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.