The X-Ice Xi3 is Michelin's third-generation Studless Ice & Snow winter tire developed for the drivers of coupes, sedans, family vans and small crossover vehicles that are looking for ice and snow traction along with predictable handling in cold, dry and wet wintry conditions. Meeting Michelin's Green X standard* for low rolling resistance confirms the X-Ice Xi3's contribution to reducing vehicle fuel consumption and emissions of CO2 gases. The X-Ice Xi3 is designed to take on ice and snow while it provides lasting winter performance.Michelin's FleX-Ice silica-based winter tread rubber compound (offers firmness at higher temperatures for wet and dry road stability while it remains flexible at lower temperatures to enhance packed snow and ice traction) is molded into a directional tread design that helps evacuate water and slush to improve hydroplaning resistance. Independent shoulder and intermediate tread blocks feature a combination of multiple micro-pumps and variable angle Cross Z Sipes to deliver traction on ice- and snow-covered roads. Additionally, the Cross Z Sipes increase tread and shoulder block stability to provide the lateral and longitudinal stiffness that enhances treadwear and driving precision on dry and wet roads. The tire's internal structure includes twin steel belts reinforced by a spirally wound nylon to optimize the tire profile while enhancing high-speed capability. Michelin X-Ice Xi3 winter / snow tires meet the industry's severe snow service requirements and are branded with the three-peak mountain snowflake (3PMSF) symbol.Note: Snow platform indicators (the equivalent of "snow wear bars") are molded into the X-Ice Xi3's tread grooves to inform the driver when ice and snow traction will be reduced as the tire's tread reaches the point where the remaining tread depth becomes less effective in deep snow.Install X-Ice Xi3 tires in sets of four only.Due to the traction capabilities of the X-Ice Xi3, Michelin recommends using X-Ice Xi3 tires in sets of four to provide the best handling characteristics and tire performance.Due to differences in performance, X-Ice Xi3 tires cannot be mixed on the same vehicle with earlier X-Ice tires.*Specific sizes featuring Green X technology are identified as such on the Sizes tab, as well as on the tire's Specs tab. Related Information: What is the three-peak mountain snowflake symbol (3PMSF)? | Environmentally Conscious Manufacturing