The Nike Zoom SPARQ S9 training shoe features Flywire technology that provides maximum support with the least amount of materials. Tensile fibers add support while minimizing weight. Nike Free Inspired Phylon™ midsole with Zoom Air™ unit in the heel. Lower midsole heights offer multidirectional stability and agility. Solid rubber outsole with Omnitrax traction pattern delivers ultimate performance. Wt. 9.2 oz.