Lightweight, seamless SpeedFrame construction External monomesh debris shield for added protection Lightweight external TPU heel counter MetaRocker™ geometry near the instep for enhanced comfort Lightweight, cushioned midsole for a smoother ride Vibram® Megagrip outsole offering superior traction 4mm heel-to-toe drop for natural stride Strategically placed, highly abrasion-resistant rubber inserts Durably made in Vietnam