4 ms·

I Googled the first name you posted and he also appears to be wearing minimalistic shoes, looks like Nike Frees? http://www.all-athletics.com/files/imagecache/

• nostromo95 9y ago
  Those are running spikes. Runners use them in track/XC for races/intense workouts. No one wears them for all or even close to the majority of their running. They're also very stiff in the exact same way that feet aren't.