The 'Nike Sole' is developed to fit on Ossur's 'flex-run' prosthetic running blade, designed for competitive amputee athletes by Nike in collaboration with world-record-holding amputee triathlete Sarah Reinersten and Ossur orthopedic innovators. Amazing stuff!
Here's an interesting clip that looks at the technology and design behind the FitFlop walking shoes.
Did you know that Nike recycle old running shoes? And what's more, they transform the shoes into running tracks!
Nike Grind is the name given to the range of materials Nike produce when recycling their old running shoes. They separate the three parts of each shoe (the fabric upper, the foam in the midsole and the rubber from the outsoles) and turn these into materials suitable for creating gym floor tiles, basketball and tennis courts and running tracks.
Here's a video that explains a bit more about the materials and the processes involved.