The MVP Series features professional patterns and the ultimate in feel from game ready Bio-Retro leather and UltraSoft palm lining. Bio-Retro leather is a perfectly oiled, full grain American Steerhide leather that provides the game ready flexibility, remarkable texture, and maximum durability that the serious player demands. Combine select materials with professional style patterns and the outcome is the MVP! Each Mizuno Pro ball glove is handcrafted to the highest quality control standards by certified Mizuno Glove Technicians in Mizunos own ISO9001 certified facility in Shanghai, China. All glove craftsmen have been through a rigorous certification process overseen by Master Craftsmen Kosaku Kishumoto (fielders gloves) and Kuni Nakamura (mitts) who together have over 65 years of experience making ball gloves. Mizuno: Your passion is our obsession.