Perfect for: Runners looking for a propulsive, ultralightweight shoe built for powering up speed training and hitting new PRs on race days.Upper: Open mesh reduces weight while increasing airflow. Silky-smooth heel liner and integrated tongue ensure a secure, distraction-free fit. Midsole Drop: 8mm. Classified as a mid-drop measurement, it pushes your foot forward to support a more natural mid/forefoot strike.Lower: A fusion of PWRRUN PB and PWRRUN HG cushioning technologies transforms every landing into propulsive motion. Embedded carbon plate puts essential stiffness underfoot to promote efficient energy return. SPEEDROLL midfoot drives every stride forward to amp up your speed. Racing: puts streamlined comfort and performance under every stride to eliminate distraction and promote speed at any distance Cushioning: absorbs impact and distributes weight for consistent, buoyant comfort under each step Energy return: transforms every heel strike into responsive, explosive forward movement Ultralightweight: provides high-performance cushioning with extremely minimal weight Lace-up style Removable, cushioned insole allows for custom orthotics PWRRUN PB cushioning puts ultralightweight energy and maximized bounce under every stride PWRRUN HG high-performance cushioning utilizes gas-injected foam to increase bounce and maximize energy return SPEEDROLL always-forward geometry propels every stride faster from heel to toe Textile and synthetic upper and lining/synthetic and rubber sole Imported