To celebrate ‘Breaking2,’ Nike’s project to help athletes break the two-hour marathon barrier, Nike created the NikeLab Zoom Fly SP. The sneaker boasts a lightweight stretch-woven upper, a Lunarlon foam midsole and a carbon plate embedded in the footbed. The shoe is dotted with running-specific graphics inside the tongue and a digital clock emblem on the heel. The ‘Chicago’ colorway was released in October 2017 to coincide with the city’s marathon.