This supportive shoe is perfect for runners who love to take on challenges. You can tackle long-distance runs and technical trails with confidence thanks to the Vibram Megagrip on the outsole for greatly enhanced grip, even on wet and uneven terrain. Thanks to the supportive panels from the midfoot to the heel, you can conquer tough trail conditions with ease. MIZUNO ENERZY FOAM and MIZUNO WAVE also provide great cushioning and energy return for a smooth run. 1) MIZUNO ENERZY FOAM MIZUNO ENERZY offers great cushioning and energy return and is placed in the lower midsole. 2) MIZUNO WAVE (FOAM) MIZUNO WAVE, with a wave structure with EVA in two hardness levels, increases stability without sacrificing cushioning. By inserting this along the entire length of the shoe, you can run more smoothly through the mountains. 3) Support Panels Support panels from midfoot to heel keep the foot in place, even in the toughest trail conditions. 4) Vibram Megagrip Vibram's leading high-performance compound. It offers excellent grip, especially on wet and uneven terrain. (30% more vertical grip and 20% more lateral grip than conventional Vibram soles)