Who doesnt want to go Mach speed? Our thoughts, exactly. A plated daily trainer that brings the heat to speedwork, our Mach X 3 is the perfect addition to your running arsenal. Built for up-tempo training miles with an extra-resilient PEBA-topped midsole and snappy Pebax plate, weve refined the collar and implemented a breathable woven upper to keep things light, cool, and fast for those next-level efforts.