This shoe was crafted and enhanced for runners who love a cushioned running experience that almost feels like floating. The midsole was enhanced with NITROGEN INFUSED MIZUNO ENERZY NXT for even better cushioning and energy return. Plus, FOAM WAVE enhances the shoe's stability without sacrificing softness, and the Smooth Stretch Woven envelops the foot with breathable comfort. 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. Foam Wave: A Wave of comfort made of 2 layers of foam.  Top layer is U4icX and bottom layer Mizuno Enerzy Smooth Stretch Woven: Designed to control stretching direction for running motion and performance. Smooth Stretch Woven adapts to your foot and keeps your foot position correct. 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