Engineered mesh upper provides areas of breathability and structure where you need them most, using seamless construction and supportive, lightweight overlays to create a comfortable fit that moves with you as you run. Padded tongue and collar add plush comfort in high-wear areas. ComforDry sockliner wicks away sweat and prevents the growth of odor-causing bacteria, keeping your feet dry and fresh, mile after mile. Responsive, lightweight SpEVA foam combines with rear- and forefoot GEL Cushioning Systems to absorb the repeated shock of impact and bounce back with every stride, returning energy at toe-off and helping you pick up the pace. DuoMax Support System is a dual-density midsole that uses areas of structure and support to help guide your foot from heelstrike to toe-off. Impact Guidance System, Guidance Trusstic System, and Guidance Line construction work together using linked componentry and a vertical flex groove to limit pronation by encouraging a more flexible, natural running stride. ASICS High Abrasion Rubber is placed only in high-wear areas of the outsole for durable traction where you need it without adding unnecessary weight.