They are performance snows. Dunlop Wintersport 3D.
Though I do have a confession of neglect, I forgot to tell the tire shop to rotate them front to back (I run square sizes on staggered wheels). So the rears have been on the rear for two and a half seasons. If I had them put on the front, they would have lasted longer. But the plus side is I will only need to buy new rears next season.