The Mizuno Wmns Spark 4 is an introductory running sneaker offering cushioned support and stability. Arrived in September 2019, this women's variant sports a grey mesh upper featuring printed leather panels, Runbird logos on the sides and dot perforation for breathability. Bright branding is found on the tongue. Atop a carbon rubber outsole, its molded midsole comes with shock-absorbent U4icX technology.