Running shoe built for the neutral to under-pronator who requires lightweight cushioning. It could be the perfect racing flat, and now its smooth, responsive ride is lighter and even more comfortable, with a breathable, ventilated QuickStrike outsole and decoupled heel. Textile and synthetic material mix ClimaCool(R) upper for moisture transport and ventilation. Textile lining. adiPRENE(R) lined insole board. adiPRENE(R)+ lasting for added propulsion. adiPRENE(R) provides protection from harmful impact forces. adiPRENE(R)+ maintains forefoot propulsion and efficiency. TORSION(R) SYSTEM for midfoot integrity. adiWEAR(R) outsole for best durability in high-wear areas. QuickStrike for best lightweight durability and flexibility.