The Radar Dimax 4 Season is the new and innovative all-weather tire designed for drivers who live in winter climates and dont want to change out their tires for dedicated winter tires every fall season. It offers exceptional grip in winter as well as in summer conditions. All sizes have the Three Peak Mountain Snowflake symbol (3PMSF) and are officially approved for winter use. In addition to the 3PMS marking, the tire comes with a 55k treadlife warranty, including the runflat sizes.