This Nike Zoom Fly is known as the "Chicago" edition. Made to commemorate the 2017 Chicago Marathon, this pair comes in a taupe grey and obsidian colorway. Inspired by the "Windy City," this pair features a taupe grey-based nearly seamless one-piece Flymesh upper with ultra-light Flywire cables, a full-length carbon-infused nylon plate within the midsole, Lunarlon cushioning and obsidian blue accents. They retailed for $150 and came in both men and women sizing. Chi-town heads that love to run can rep their city in the "Chicago" Nike Zoom Fly. Looking to buy a pair? Go online and pick them up. Have some pairs to sell? Hit up the marketplace and see what they're going for.