Flexible midsole technology adapts to foot flexion for natural gait cycles, best trail ultramarathon shoes.
Crafted for barefoot trail enthusiasts, the Vivobarefoot Primus Trail II All-Weather FG delivers minimalist, zero-drop performance with durability and eco-conscious design. Its recycled, water-resistant all-weather mesh upper keeps your feet protected and dry, while its foot-shaped construction??wide, thin, and flexible??enables natural movement and stability on varied terrainOptimizes heel security preventing lift and blisters during steep climbs, best trail run shoes.