A long time ago (like, a really, really, really long time ago), there were just sneakers. Then, somewhere along the line, a brilliant and as-of-yet unrecognized person decided that there should be different sneakers for different activities. Hence tennis shoes, basketball shoes, running shoes—the whole nine. Well, at least three anyway. As time passed and more activities became commonplace, more and more sneakers were introduced as specialized equipment. But a funny thing happened—some sneakers designed explicitly for one discipline were adapted for others, and occasionally became better known for their secondary purpose. If this is all starting to get confusing, just check out 20 Sneakers That Have Lived Double Lives—you'll figure it out.

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