- The Cool Base Authentic On-Field Jersey is our authentic button front jersey with full or left chest authentic decoration and sleeve patches. An official Major League Baseball silhouetted batter patch is affixed to the center back neck. This 100% polyester jersey will make you look just like the pros, complete with a Cool Base side seam label and MLB Authentic Collection Performance Apparel transfer locker tag. Please allow 5-7 days for delivery.
Be the first to review this product.