Stability like an SUV. The revisited Pivot Post technology works as a stabilizer suspension system providing you with extra control and protection when running on rough terrain. Lighter than ever. A revisited sole and a more streamlined design take weight away and improve flexibility to help you move more naturally in rough and mixed terrain. TrailTack Rubber. The TrailTack rubber sole gives extra traction on both wet and dry surfaces and encourages you to go faster, lighter and beyond your limits.