The Wintrac Pro is Vredestein's Performance Winter / Snow tire developed for drivers of sports cars, sporty coupes, performance sedans and high-powered crossovers and SUVs. Designed to provide confident control and maximum grip in cold, dry and wet conditions plus sure-footed traction in snow and on ice, the Wintrac Pro combines advanced technology with an attractive, Giugiaro-styled design.The directional tread pattern of the Wintrac Pro is molded from a resin- and silica-enhanced compound that improves traction for increased handling and braking performance on wet, snow-covered and icy roads. Broad shoulders help maximize lateral grip and high-speed cornering in cold, dry and wet conditions. The footprint shape is engineered to provide direct response to steering inputs while also efficiently evacuating water from the contact patch to resist hydroplaning. High-angle sipes in the shoulders optimize handling in snowy or icy conditions, while horizontal sipes in the center of the tread enhance longitudinal traction for maximum braking and acceleration.Wintrac Pro winter / snow tires meet the industry's severe snow service requirements and are branded with the three-peak mountain snowflake (3PMSF) symbol.Install Vredestein Wintrac Pro tires in sets of four only. Related Information: What is the three-peak mountain snowflake symbol (3PMSF)?