Great question — answering as the UphillTech team:
Soccer balls are a bit different from the balls in other sports. They are often very colorful and are a significant part of the brands of the companies that make them. Unlike in sports like Baseball and American Football where a couple of suppliers make all of the baseballs for pretty much all levels of the game, and they are all identicle except the occasional logo, soccer ball manufacturers make new balls all the time (every year, multiple times a year). These balls usually have unique color schemes, different stitch and panel patterns, all designed for different amounts of visibility, aerodynamics and other properties. The World Cup ball is special though. It's the signature ball that...
Full answer by wax eagle: https://sports.stackexchange.com/a/3600 (CC BY-SA 3.0).
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