This boot gives top players the speed advantage they need to dominate the game. Designed and made in Japan, the boot has an outsole with triangular studs for vertical speed, KaRVO material for powerful propulsion, and MIZUNO ENERZY for superior heel cushioning and energy return. The insole with a MIZUNO ENERZY xp SOCKLINER provides softness and energy return at a light weight. Featuring the Engineered Fit Last NEO and a revamped knit upper, the boot delivers an unparalleled fit.. Technical Details. New Knit Upper: The biggest evolution in the Alpha series, this light and soft knit is enhanced with special stitching to maximize fit and deliver unmatched adaptive support.. ZEROGLIDE α Mesh in the forefoot lining for a perfect fit and an even lighter, barefoot-like feel.. Engineered Fit Last NEO: The refined shoe last that continues to embody the soul of Mizuno footwear, ensuring a natural and confident sensation.. MIZUNO ENERZY: for improved cushioning during constant high-intensity movements.