This shoe is an excellent choice for everyone from beginners to marathon fans who like moderate cushioning. The incorporation of NITROGEN INFUSED MIZUNO ENERZY NXT takes the softness and energy output to the next level in this shoe. It helps you smoothly transition from ground contact to pushing off. The MIZUNO WAVE structure works in concert to support forward propulsion and smooth weight transfer. Hanabi (“fireworks”) mark the celebration of Natsu Matsuri ("Summer Festivals") that take place across Japan as a time to come closer with family and friends.  It is a time to relax and enjoy parades, delicious street foods, and dazzling fireworks displays. Dedicated to the celebration of sport, Mizuno brings this celebratory atmosphere through warm, joyful colors and fireworks graphics to your favorite shoes. Celebrate through your summer miles with the Hanabi pack! | MIZUNO ENERZY NXT: The next generation of MIZUNO ENERZY midsole material. Designed to maximize energy return and cushioning for optimum performance. MIZUNO WAVE®: The MIZUNO WAVE® plate disperses energy from impact to a broader area providing a stable platform and a superior cushioning. Jacquard Mesh Upper Gusseted Tongue: Stretchy tongue lining that hugs the foot securely and comfortably without any stress. X10 Outsole: Durable carbon rubber that allows for longer wear. Eco Friendly Materials: Recycled materials