We spoke with Danny Orr, senior director of product development at Brooks, to find out what it takes to build a track spike that can handle running a mile at more than 16 mph. The post Josh Kerr wants to run the fastest mile ever. This is the shoe Brooks built to help him do it.

Source: [Popular Science](https://www.popsci.com/gear/brooks-josh-kerr-world-record-mile-run-shoe-design/)

Sponsored