Year Introduced: 2011

A case could be made for nearly every Free Run shoe to appear on this list, but it's the Free Run 2, with its tendon-mimicking overlays, that really made the technology shine. The same overlays were utilized on the Air Max 2012, but it was 2011's Free Run 2 that made the best (and, at $90, most wallet-friendly) use of the design. The all-black makeup made inroads amongst even the most fashion-conscious menswear illuminati, while the NIKEiD program allowed for all sorts of wild designs.