What Size Material Is The Official AFL Game Ball? October 17, 2019 23:53 The Official AFL Game ball is a size 5. It is made from Australian top-grade cowhide leather. Related articles What Material are Sherrin Balls made from? What does size 5, 4, 3, 2, 1 and 20cm or Mini mean in regards to footballs and which one is best for me? How Can I Ensure My Football Remains In Good Condition? Which type of ball is best for all surfaces? How will my order be shipped?