Korkers® Men's Triple Threat™ with Carbide Spikes bite into smooth, slick surfaces ensuring long-lasting, positive traction in treacherous terrain. Customizable sole for endless spike, bar and hex disc configurations for the ultimate in options for reliable traction Sticky rubber outsole with over-molded stainless-steel receptacles which accept any combination of Triple Threat™ spikes, bars, or hex disks Match the sole size with Korkers® OmniTrax 3.0 boot for a perfect fit Fit Tip: Korkers® outdoor soles come in whole and half sizes for both Men and Women and must match the size of your Korkers® winter boots to function properly (e.g. Men’s Size 10 Boot = Men’s Size 10 Sole). Half sizes, select the appropriately-marked sole (e.g. Men’s 10.5 boot = Men’s 10.5-11 sole). Boot sizing can be found on the inside tongue label or on the original Korkers® boot box or sole box. Product Features: Main Material:Rubber; Carbide Stainless Steel studs Korkers Men's Triple Threat Carbide Spike Sole