600+ miles on the Nike Katana Racers. A great shoe, of course they stopped making them last year. At around 500 miles they developed a tear and then another tear. For whatever reason I land towards my pinkie on my left foot, I guess that would be supination. I was going to see how many miles I could get out of them before they completely fell apart, but I imagined a scenario where I was eight miles from home and the shoe was completely destroyed and I ...