Fully integrated (molded-in) Military grade tungsten carbide spikes maximize traction and virtually eliminates spike loss Spike patterns strategically placed at heel and front of the sole, leaving the mid-sole area open for safe ladder use (mid-sole models excluded) Specially designed snow tread pattern offers added traction characteristics ensures maximum slip resistance Integral retention strap ensures a secure fit in all conditions 14 (28/pair) military-grade tungsten carbide spikes per pair.