The Mizuno 9-Spike Pro Limited G4 baseball shoe is the next generation of cushioning and stability. Synthetic leather upper is designed for feel and comfort. Mizuno's global Crew21 initiative ensures production of Earth friendly materials. Mizuno Wave technology reduces weight while adding stability and cushioning to the heel and forefoot. 9-Spike Technology dramatically enhances lateral stability and traction, providing a more stable platform for the athlete's performance.