Castellanos #9 Detroit Tigers Cool Base Replica Home Jersey. The Cool Base® Jersey is a revolutionary new lightweight and breathable button front jersey with team color and styling. A printed tackle twill decoration across the full or left chest makes the official team logo pop against the braid seams. This athletic, modern fit jersey also features a center back neck MLB silhouetted batter patch. A tagless neck label, and an MLB performance transfer locker tag is included. Cool Base® button front jersey with varying braid types and locations Full or left chest official logo printed tackle twill decoration Tagless neck label and transfer locker tag Athletic modern fit 100% polyester Cool Base® Center back neck MLB silhouetted batter patch. Nick Castellanos' name and number hand-sewn on the back in authentic font tackle twill.