Vivobarefoot Primus Trail Flow – Men’s Dark Shadow

Conquer trails with the Primus Trail Flow in Dark Shadow—a barefoot-inspired trail runner combining natural ground feel with durable, eco-conscious design.

Breathable, Sustainable Upper

• 100% recycled polyester mesh provides durability and airflow for active trails.


• Engineered anti-slip lacing ensures a secure fit, even on technical terrain.

Ground-Engaging Outsole

• All-Terrain outsole delivers precise grip with a flexible, ultra-thin platform (1.8 mm sole, 3.5 mm lug depth).


• No insole—as thin as you can get while still offering protection—maximizes barefoot connection.

Barefoot-Driven Design

• Zero-drop layout and minimalist construction encourage natural stride and sensory feedback.


• Streamlined silhouette ideal for fast hiking or mindful trail runs.