The Korkers OmniTrax V3.0 Triple Threat Carbide Spike Sole is a customizable sole for endless configurations with spike, bar, and hex disc traction. This sole features a sticky rubber outsole with over-molded threaded stainless steel receptacles to accept proprietary bolt-on traction enhancement system. Choose one sole with its traction option, then add the components from the other two for a complete set. Carbide spikes bites into smooth, slick surfaces for positive , long-lasting traction in the most treacherous terrain.