*Never Worn* Olive and Bone Redefining rules and rethinking what's possible in streetwear isn't strange for Nike, but the new Air Max FF 720 is a concept made real. The FF is an ultra-light closed toe sandal designed for the street or for space travel. It features a cut-out upper and simple lacing system in this olive and light bone colorway. Nike's biggest Air bag to date, the 720 runs the entire length of the outsole so you're literally walking on air.