From humble beginnings come great things. The ASICS GEL Kayano, now it its 18th iteration, began in 1993 as the ASICS GEL-Kayano Trainer. Named for its designer — who is still a vital part of the ASICS design team — the Kayano Trainer entered the market as a flagship shoe for "the serious high-mileage runner" (also Howard Stern, who still swears by an earlier model). Eighteen years (and 18 models) later, the GEL Kayano 18 occupies that same space. Click ahead to trace the complete history of the ASICS GEL Kayano.