Expertly designed and backed by over 100 years of ball-production experience, Mizuno's new MB380FS flat seam baseball is the ideal choice for those who demand high-level performance and longevity. DESIGN & DETAIL: Premium Full Grain Leather Cover: Incredible durability in a traditional full grain leather cover that provides superior grip and feel Cushioned Cork Center: Durable cushioned cork center provides long lasting performance Raised Seams