Brandblack and the rubber experts at Vibram collaborated on the high-traction trail running-specific sole of the Sierra Runner. Featuring a toggle lacing system from NIFCO, heavy-duty nylon and suede reinforcements throughout, and a radical motocross-inspired design, the Sierra doesn't skimp on performance or looks.
- Brandblack designed and Vibram engineered technical trail running outsole
- High-traction rubber outsole with lug traction
- Rugged nylon upper and scuff suede overlays for stability and durability
- NIFCO lacing system for quick lockdown
- Outsole 100% Rubber Upper Sole 64% Leather, 36% Mesh
- US Men's sizing
- Fits one half-size small - if you wear a 9, take a 9.5