Air Zoom Miler [2004]This silhouette released in 2004 as the Air Zoom Miler, it was designed by Scott Portzline and developed alongside the mile world record holder at the time, Hicham El Guerrouj. The Miler replaced both the Zoom Swift and the Zoom Spiridon, it was a more successful attempt at a lighter, caged Zoom shoe. Like the Spiridon, theres a big Zoom Air unit in the heel which sits inside a plastic cage. But, whereas the Spiridons forefoot was simply lightweight