Dunlop's Grandtrek SJ 6 is all you need if you're looking for powerful traction in the worst of ice and snow. This tire has zigzag grooves in the center which gives you the most traction possible in a studless tire. There won't be any guesswork when it comes to braking in the snow. If you hit the brakes, you're going to stop. These tires are also reinforced with special fiber-glass threads, making it durable.