The FAZ, or Filament at Zero degrees, Technology helps the tire maintain its shape, and it improves its ride quality and steering precision by reinforcing the tread area of the tire. The spiral-wrapped nylon or aramid reinforcing filaments are precisely placed at specific parts of the tread area, or across the entire tread, on top of the steel belts banded at zero degrees. The tire's boosted performance and steering precision are thanks to this.