Primus Flow Knit. Men's

The Primus Flow Knit is Vivobarefoot's most adaptive performance runner, combining the responsive Primus Flow platform with a seamless 360° knit upper for an exceptionally comfortable, sock-like fit. Built for running, training, and everyday movement, it delivers lightweight flexibility while allowing your feet to move naturally. The breathable knit construction adapts to your foot as you move, while the minimalist design keeps you closely connected to the ground.

Designed for runners and active lifestyles, the Primus Flow Knit offers a balance of comfort and performance with an ultra-light construction, responsive ETPU midsole, and grippy Primus Flow outsole. Whether you're logging road miles, heading to the gym, or wearing them throughout the day, they provide unrestricted movement without unnecessary bulk.

Key Features

• 360° Seamless Knit Upper – Soft, breathable knit construction wraps the foot for an adaptive, sock-like fit.
• Primus Flow Outsole – Ultra-light outsole engineered for flexibility, grip, and natural ground connection.
• ETPU Performance Midsole – Lightweight cushioning adds comfort while preserving sensory feedback.
• Unstructured Heel Design – Encourages natural alignment and unrestricted heel movement.
• Textured Laces & Engineered Lace Loops – Deliver a secure lockdown without creating pressure points.
• Exceptionally Lightweight Build – Weighs just 161.3 g (EU 42), helping reduce fatigue during runs and workouts.
• Vegan-Friendly Construction – Made primarily with recycled synthetic materials instead of animal-derived materials.

Adaptive comfort built for every stride.