If the lines on the Air Zoom Spiridon evoke elements of the AM97, it’s because lead designer Christian Tresser was the man behind both shoes. The Spiridon was designed just before the Air Max and it debuted a season prior, with the 97 following a visual language he created for its lightweight elder brother. Given that Tresser was behind 1997’s Air GX football boot and worked on the Mercurial that changed boot design the following year, those lines and use of metallic hues loosely parallel both runners, too.