Running shoe built for the neutral to under-pronator who requires enhanced cushioning. Everything a beginning runner needs to get off to a safe, supportive start with unstoppable a3(R) cushioning in the heel and external heel counter for a stable, dynamic ride. Synthetic material mix and air mesh upper for maximum ventilation. Textile lining. EVA insole for comfort. Injected EVA for long-term lightweight cushioning. Structured a3(R) elements for weight reduction and durability. adiWEAR(R) outsole for best durability in high-wear areas. Road lugs for best grip.