Optimised durability and tracking the nike cr7 prestige football features nike aerotrac grooves and a micro textured casing for true flight accuracy and control high contrast graphics provide superb ball tracking benefits nike aerotrac grooves and micro textured casing deliver accurate flight contrast graphics allow for easier ball tracking 12 panel design delivers durability product details two year stitch and shape guarantee materials 60 rubber15 polyurethane13 polyester12 eva crist