Studded Trailtrac Sole Lightweight, high-friction rubber lugs and 24 ice-biting carbide studs provide outstanding grip for all off-road adventuresFeaturesLightweightHigh-friction rubber lugs and 24 ice-biting carbide studs provide outstanding grip for all off-road adventuresFit: Match the sole size with your OmniTrax 3.0 boot for a perfect fitSole sizing informationOutdoor 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