Nike Free Run+ 3 ($100)
I've been told that sneakers should be replaced every 500 miles. If that's true, I'm about 1,000 miles overdue. So tell me: do you have a pair that you swear by? If so, I want to know. I'm currently debating between customizing a pair of Reebok Crossfit Nanos or just buying the Nike Free Runs pictured above.