The Nitto NT420S tread pattern was designed by an artist and it shows. The NT420S sports one of the most original and aggressive truck and SUV tread pattern available on the market today. The unique tread design is the perfect compliment to your wheels. Many truck and SUV tires are directional meaning that they cannot be rotated from side to side – only front to back. The Nitto NT420S’ non-directional tread design gives you the freedom to rotate the tires front, back, and side-to-side. This feature allows for even wear across the tread area, resulting in longer tread life and a more comfortable, quieter ride.