For runners of average build with overpronation. For everyone from beginner runners to runners training for marathons who use them for jogs. Your runs will be smoother than ever with this shoe equipped with MIZUNO ENERZY for the first time. The MIZUNO ENERZY Foam in the heel wedge offers great cushioning and energy return. The DOUBLE FAN SHAPED WAVE is designed for overpronation, and enables smooth body movement.