Active Traction For True Winter PerformanceKeep moving, snow, rain or shine, with a high-performance tire that changes with driving conditions. Dunlop's cutting-edge Active Traction Sipe SystemTM is key to the SP Winter Sport 3D's ability to maintain optimum performance as driving conditions change. Three unique types of sipes positioned throughout the treadface pull, grip and enhance traction to help provide you with high-performance cornering and handling in icy, snowy, wet and dry driving conditions. It also features a tread compound built to remain "sticky" in winter temperatures and help promote even tread wear.FEATURES -Active Traction Sipe System-Directional tread design-Multi-Radius Tread Technology distributes pressure evenly over the contact patch and large footprint-Jointless Band Technology TM , a spiral-wound cap ply technology-Tread low in compound aromatic oils-Tread compound processed with reactive silica for elasticity at lower temperatures BENEFITS -Central-block "pulling" sipes help provide superior performance, traction and braking in ice and snow-Intermediate block sipes help provide enhanced lateral stability and control in wet and slushy conditions-Shoulder area 3D sipes help provide maximum grip on snow and ice, shoulder stability and excellent dry handling-Enhances wet handling and deep-water performance-Helps deliver superior dry handling without sacrificing wet handling through all stages of cornering-Helps maintain the tire?s shape at various speeds and load conditions for enhanced handling, ride comfort and tread wear-Environmentally friendly compound-Improves road contact and traction