High-performance winter tyre, the Dunlop SP Winter Sport 3D tyre can cope with bad winter road conditions in complete safety. Road holding. The Dunlop SP Winter Sport 3D has three types of sipes that adapt to the road to ensure optimal road holding on the snow, ice, and wet and dry roads. Safety. Resists aquaplaning: the directional tread pattern enables rapid water drainage. Grip. Excellent grip on wet and dry surfaces thanks to MRT technology (Multi Radius Tread) that evenly distributes tyre pressure on the contact patch.