The Scorpion Winter is Pirelli's Light Truck/SUV Performance Winter / Snow tire developed for the drivers of today's powerful luxury crossover and sport utility vehicles. Pirelli's Ecoimpact icons branded on the sidewalls highlight the tire's contribution to the environment with regards to energy efficiency, clean air and low noise. Scorpion Winter tires are designed to deliver low temperature wintertime driving performance by combining predictable handling on dry and wet roads with traction in snow and on ice.Featuring a tread rubber compound that introduces a new polymer blend and a higher content of silica components, the Scorpion Winter enhances grip and handling in typical winter driving conditions. The tread compound is molded into a directional design that features a rounded tread profile, modular center block geometry and stable shoulders to enhance dry road handling. Circumferential grooves help maintain good traction on wet and slush-covered roads while snow boosters ridges molded in the bottom of the grooves and multi-directional sipes help bite into snow and on ice.Note: Scorpion Winter tires in sizes up to and including 255 Section Widths feature a 3-rib tread design, while tires in sizes of 265 and wider Section Widths feature a 5-rib tread design.Scorpion Winter Performance Winter / Snow radials meet the industry's severe snow service requirements and are branded with the three-peak mountain snowflake (3PMSF) symbol.Install Scorpion Winter tires in sets of four only.Vehicles should always be equipped with equivalent tires at all wheel positions. These winter / snow tires, due to their exceptional snow and ice traction provided by their unique tread compounds, must be used in sets of four to help ensure proper vehicle control. Limited sizes of the Scorpion Winter are available with Pirelli Noise Cancelling System, which involves the manufacturer adhering a layer of sound-absorbing foam to the inner liner of the tire to reduce cabin noise in the vehicle. These sizes are identified on the Specs page and in the search results. Related Information: What is the three-peak mountain snowflake symbol (3PMSF)? | Environmentally Conscious Manufacturing | Noise Reducing Tire Technology