Simple yet distinctive, the ZX Flux Smooth comes softer, slimmer and more feminine than the original.Features Include:techfit® upper is engineered for natural flexible support and a seamless sock-like fit.Thin neoprene upper with printed geometric aqua graphic; Printed techfit below laces.Soft jersey lining.Soft moulded TPU heel cage; Webbing heel pull.TORSION® SYSTEM for midfoot integrity.Injected EVA midsole and outsole.