The Mizuno 9-Spike™ Rampage Mid baseball shoe is Mizuno's lightest replacement spike for baseball and softball. Mizuno's global Crew21 initiative ensures production of Earth friendly materials. Dynamic Synthesized Leather upper is lightweight, breathable, and provides excellent durability. Wave® technology, the only midsole technology that enhances both stability and cushioning providing unsurpassed performance. Proflex™ proprietary flex construction is engineered to provide a controlled flex for all three primary baseball movements: running, batting and throwing. 9-Spike™ Technology dramatically enhances lateral stability and traction, providing a more stable platform for the athlete's performance. Wt. 12.3 oz.