MLB Baltimore Orioles Nick Markakis Black Alternate Short Sleeve 6 Button Synthetic Replica Baseball Jersey Spring 2012 Men's 100% Polyester Imported 100% Polyester Double Knit Made Of 100-Percent Polyester Double-Knit For Authenticity Authentic Decoration, Trim, And Printed Tackle Twill On The Front And Back Officially Licensed By Major League Baseball Honduras