Mizuno Men's 9-Spike Vintage G6 Mid Baseball Cleat 100% Synthetic Synthetic sole 9-Spike Technology dramatically enhances lateral stability and traction, providing a more stable platform for the athlete's performance with three "Cleat Triads" for superior execution of the three primary baseball/softball movements Mizuno Wave Technology reduces weight while increasing durability, cushioning, and stability Proflex, Mizuno's proprietary flex construction, is engineered to provide a controlled flex for all three primary baseball movements: running, batting, and throwing