As the most cushioned model among Mizuno trail shoes, the Wave Mujin 9 is designed for long-distance runners looking for maximum cushioning, superior traction and durability. What's New Sleeker upper and improved lacing system Using a dual foam combination of Enerzy and U4icX midsole, the Wave Mujin 9 still delivers a plush, protective underfoot experience. Mizuno's signature Foam Wave runs the length of the midsole, adding stability while maintaining a soft and smooth ride. An ESS Rock Plate protects your feet against sharp trail objects.The Mujin 9's upper has been redesigned with a new breathable upper that reduces the weight by 15g to the previous models, with More than 90% recycled content on upper body lining textile.​ More than 90% recycled content on sockliner lining.​ More than 90% recycled content on shoelace. Grip is provided by a durable, sticky Michelin rubber outsole with lugs that work in all conditions.