Nike strike AFC official ball Official ball design with takedown model. Panel: 32-Panel structure. Pentagon and Hexagon consists of spherical shape. More stable orbit touching possible. EMachines Tech: joining the accurate sewing by machine. Prevent the ingress of sand and water. Skin material: polyurethane. Tube: butyl. Soccer ball  -Material  60% rubber  15% polyurethane  13% polyester  EVA 12%