The Bridgestone Winter Dueler is one example of specialty winter tires for use in icy conditions. The Winter Dueler features a special dual-compound tread that has micropores in the surface to help dissipate the water layer between the tire and the ice. These tires use very soft-tread rubber with a great many sipes. This means ice traction that is superior to that of any standard mud- or all-terrain tire. These tires are for seasonal use only as they wear very quickly on the pavement.