"Surprise" isn't normally a word that you'd associate with sneakers. Releases are planned months—if not years—in advance, and even the hyper-est hyperstrike usually leaks out one way or another. Professional athletes find favorite styles and stick to them, companies design models that they think will sell. In most cases, a surprise in sneakers is a bad thing. But not always. And if it wasn't for the occasional risk-taker, this whole sneaker thing would be a lot less interesting. Check out The Biggest Surprises in Sneaker History and let us know your thoughts below.