Keep moving, snow, rain or shine, with a high-performance tire that changes with driving conditions. Dunlop's cutting-edge Active Traction Sipe System™ 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.