Adidas had 'mixed' commercial success at the 1970 Mexico FIFA World Cup: they got duped by PUMA in the "Pele Pact", but set a new precedent: providing the FIFA World Cup matchball. The Adidas matchball used at the 1970 Mexico FIFA World Cup was named the Telstar; aka "Television Star ball" or the "Telstar satellite ball". The matchball was made iconic through the use of black and white segments - shown below - which were used to make the ball more visible for television viewers. The design was also inspired by the Telstar satellite: the Telstar satellite was the first satellite to provide a live transatlantic television feed, and was the satellite used to provide a feed back to European countries during the 1970 Mexico FIFA World Cup.
The Telstar proved to be hugely success, it's black and white segment design has become iconic: typically used in cartoons and drawings when conveying a football. The Telstar was also used at the 1970 West German FIFA World Cup; only the Adidas Telstar and Adidas Tango have been used at two or more FIFA World Cups. The pictures above display the 1970 and 1974 versions of the Telstar; as can be seen, the balls contain a virtually identical design. The 1974 Telstar incorporated a polymer coating to make it waterproof.
The success of the Telstar persuaded Adidas to provide the matchball for every future FIFA World Cup. Adidas matchballs have been used at the: 1970 Mexico FIFA World Cup; 1974 West Germany FIFA World Cup; 1978 Argentina FIFA World Cup; 1982 Spain FIFA World Cup; 1986 Mexico FIFA World Cup; 1990 Italy FIFA World Cup; 1994 United States of America FIFA World Cup; 1998 France FIFA World Cup; 2002 Japan and South Korea FIFA World Cup; 2006 Germany FIFA World Cup; 2010 South Africa FIFA World Cup; and the 2014 Brazil FIFA World Cup.