Official FIFA 1978 World Cup ball in Argentina

Adidas Tango River Plate model

Tango Durlast by Adidas was the official match ball of 1978 FIFA World Cup in Argentina. Adidas introduced a new design which would be used for the next twenty years, the Triad. It is the black triangle that appears across the surface of the ball. These 20 Triads created the illusion that there were 12 identical circles. It was the most expensive ball in history, at the time, with a £50 price tag. Like its predecessors, the adidas tango durlast was made of genuine leather and boasted the shiny waterproofing durlast coating. The ball was consisted of 32 pentagonal and hexagonal panels. The only difference was the name, Tango. Obviously this name comes from the Argentina culture, the Tango dance.