In celebration of the 41st annual Chicago Marathon this Sunday, October 7, Nike will be releasing a special edition colorway of the Nike Zoom Fly SP.

The $150 kicks feature a Summit White, University Red, Black, and White color scheme equipped with graffiti-style graphics on the enlarged forefoot Swoosh. Additional details include “CHI” text on the heels, reflective detailing and Chicago Marathon branded insoles.

The 26.2 mile journey is scheduled to get underway from Grant Park at 7:20AM CST on Sunday, but Nike's Chicago Marathon Zoom Fly SP is already up for grabs. Click here to purchase.

In addition to the special edition sneakers, Nike will also be furthering their "Just Do It" campaign with the release of some new t-shirts bearing images of marathon runners and onlookers along with their slogan, "It's only a crazy dream until you do it."