• Effortless Fit: The relaxed fit with a tapered leg ensures easy movement

High-Quality Warmth: Filled with duck down and feathers

it includes a large center-back drop-in pocket to store all your essentials—keys

this shoe stands out with its innovative GuideRails® technology that keeps your natural motion in check while controlling excess pronation

Supercritical 100% PEBA superfoam comprises both full-length layers for utmost energy return

Vivobarefoot | Primus Trail FG 3.5 | Men's | Obsidian Size:12 (EU 45) • Effortless Fit: The relaxedShop Our VivoBarefoot Collections Men's Women's Rugged Versatility Meets Natural Motion Hit the trail and reconnect with the earth in fearless style with the Primus Trail FG 3. 5 a barefoot inspired trail runner built for adventurous souls who crave natural movement and dependable performance over diverse terrain. Crafted to be both lightweight and durable, this shoe delivers the feedback, flexibility, and traction you need to explore trails near and