ZX Flux ShoesA retro running shoe rebooted with a shiny metallic upper.The first ZX running shoes debuted in 1984, and since then, they've graduated to iconic status. This season's ZX Flux shoes show off a retro look and add fresh style with a shiny metallic upper that features an allover graphic. These women's shoes pack a smooth ride, courtesy of their TORSIONĀ® SYSTEM.Shiny synthetic upper with allover tonal graphic printZX heel cageTORSION® SYSTEM for midfoot integrityMolded EVA midsoleRubber outsoleImported