In its fourth edition, the Mach 4 takes its biggest leap forward, built on themes inspired by the RocketX and Carbon X. Designed for logging long miles, this everyday trainer delivers a lively ride andenergetic underfoot feel that is unquestionably HOKA. Softer and bouncier than the previous iteration,the Mach 4 employs a harmonious blend of foams — merging an incredibly soft, lightweight foam ontop with rubberized foam directly beneath. This up-tempo shoe has been crafted with a new pull tab,revamped upper made from heat pressed TPU embroidered yarns, and a refined collar shape thatalleviates pressure on the Achilles. Light, fast and unquestionably responsive, the Mach 4 delivers adaily dose of speed.