Ride The Next Wave. This shoe is an excellent choice for everyone from beginners to marathon runners who like moderate cushioning. The incorporation of MIZUNO ENERZY NXT (Nitrogen infused) takes the cushioning and energy output to the next level. It helps you smoothly transition from ground contact to toe off. The MIZUNO WAVE structure works in concert to support forward propulsion and smooth weight transfer. MIZUNO ENERZY NXT: Mizuno's next-generation standard material made using eco-friendly resources that offers softness, excellent energy return, and a great light weight. It is used for the heel wedge, where your heel hits the ground. MIZUNO ENERZY FOAM: MIZUNO ENERZY offering amazing cushioning and energy return is inserted in the top midsole. MIZUNO WAVE: In addition to providing both cushioning.