The Continental Viking Contact 7 235/55r17xl is a winter tire that is designed to provide excellent traction in cold, snowy, and icy conditions. It features an advanced tread pattern with deep sipes and a high-silica compound that help provide better grip on slippery surfaces. The tire also has an optimized footprint that helps to improve handling and stability in winter conditions. Additionally, the tire is designed to reduce road noise and provide a comfortable ride.