Set ambitious goals and then follow your plan. This running shoe is designed to help you run further and further. The Rocker design ensures an airy stride and generates forward momentum. The upper of this shoe is made with a high-performance fiber containing a minimum of 50% Parley Ocean Plastic, a material created from recycled plastic waste that has been collected from islands, beaches and coastlines to prevent ocean pollution. The remaining 50% is made from recycled polyester.