Solid Rubber Outsole: Complete solid rubber outsole for 360 degree grip. AP+ Midsole: Lightweight mid-sole material. Increased rebound and cushion durability while maintaining lightweight performance. MIZUNO WAVE: The MIZUNO WAVE plate disperses energy from impact to a broader area providing a stable platform and a superior cushioning. Smooth Stretch Woven U4icX Midsole: A lighter, more cushioned iteration of U4ic, delivering a softer underfoot feeling for a smooth transition.