The Dynafit Ultra Pro Trail Running Shoe has balanced cushioning for extended support on ultra-length trail runs. Dynafit's Duo Motion midsole is made of two different thicknesses of EVA to give optimal motion control. The thick, dual-density midsole is the reason these shoes can last for such long distances, while still providing protection and stability. The Ultra Pro is perfect for running missions like the Tenmile Traverse, the Four Pass Loop or even the infamous LA Freeway (do trail runs exist outside of Colorado?). If you want a long-lasting shoe that will stay comfortable, no matter how long the outing, look to this high-efficiency trail runner.