Every shoe in a sneakerhead's rotation started as a running shoe. That's not an exaggeration — it's the history. The Air Max. The Superstar. The 990. The Stan Smith. The Gel-Lyte III. Every one of them was designed to help athletes run faster, jump higher, or move with less impact. Every one of them ended up on the feet of people who have never competed in anything. The crossover from track to street is the defining story of sneaker culture. When a running shoe escapes its original purpose and b