The Nitto NT90W tire is a winter tire developed and designed for passenger cars, SUVs and crossover vehicles for maximum snow traction and ice grip. The rubber is designed to stay pliable at freezing temperatures, with full width belts under the tread to ensure the maximum amount of rubber in contact with the road at all times. This large, flat contact patch is very beneficial in adverse weather conditions, including hard-packed snow and ice. This tire has multi-wave siping, advanced 3D interlocking blocks and silica-infused compounds designed for extreme winter driving conditions. The Nitto NT90W tire also has crushed walnut shells in the tread rubber that is supposed to give the tire extra bite on packed snow and black ice.