Compsite Leather, Rubber Imported Wilson The Duke NFL Replica Football - Official Size, Brown OFFICIAL SIZE: Official regulation size for High School and College Football, ideal for ages 14 and up REPLICA STYLE: Built to get as close as we can to the real Duke delivering a similar look and performance, and updated with the red, silver, and blue NFL Shield PRECISION LACES: Raised pebbled laces give your fingers stronger grip points allowing for more control, as well as, easier accurate throwing COMFORT CONSTRUCTION: A thicker 1.2mm layer of EVA foam underneath outer cover giving the ball a softer grip and feel NFL OFFICIAL: Wilson is the official football of the NFL, and the only official football in the league's history, a tradition passed down from generation to generation since 1941.