Zoom through the city in this energetic road running shoe. Our iconic road runner gets a performance upgrade. Featuring a new dual-density midsole for softer landings and more powerful take-offs. Plus, a breathable flat-knit upper and cage construction, for secure foot lockdown and a fresh aesthetic. One-piece knitted upper The shoe's snug bootie construction is updated with a single-piece knit for maximum airflow. The perforated toe box further boosts breathability. Dual-density midsole For a cushioned yet energetic ride, the midsole's top layer is made with soft Helion superfoam, while denser foam on the bottom provides a more propulsive push-off. Plus, it's now finished with a new knit material for a more modern look. Nylon-blend Speedboard Previously made with TPU, the new nylon-blend Speedboard produces an energetic and responsive ride. Made using a single piece of flat-knit engineered mesh, the breathable upper has a snug, sock-like fit that adapts to a wide range of foot shapes. The new dual-density midsole is made with two types of Helion superfoam – for soft landings and powerful take-offs. Injection molded nylon-blend Speedboard for an energetic and responsive ride.