Adidas Fevernova

The Adidas Fevernova is a football manufactured by German corporation Adidas. It was the official match ball of the 2002 FIFA World Cup held in South Korea and Japan and 2003 FIFA Women's World Cup held in United States. Its styling marked a departure from the traditional Tango ball design.
The ball was composed of 11 layers and was 3-mm thick, including a special foam layer with gas filled balloon imbedded in a syntactic foram. The outer cover was made from a combination of polyurethane and rubber.

History

The Fevernova's colouring parted from the Tango's style of three-pointed shapes connecting each hexagon, instead introducing a different, triangle-like shape on four hexagons. This colourful and revolutionary look and colour usage was entirely based on Asian culture. It also featured a refined syntactic foam layer, to give the ball superior performance characteristics, and a three-layer knitted chassis, allowing for a more precise and predictable flight path.
This ball was notoriously criticised for being too light, yet some spectacular goals were scored with it during the tournament. The ball was also blamed for a number of upsets that happened in the knockout stages. Designers defended the ball, saying it was actually heavier than the typical ball, and that it was designed to allow players shoot with greater accuracy. Under FIFA rules, footballs have to have a circumference of and a mass of ; the Fevernova was at the lower range for circumference and near to the maximum allowed weight.
The ball was used in home matches during the 2002–03 Bundesliga for Bayer 04 Leverkusen, Bayern Munich, Hansa Rostock, 1. FC Nürnberg and Schalke 04 and was further used during the 2003–04 Bundesliga by Leverkusen, SC Freiburg, Bayern Munich, Hansa Rostock and Schalke.
A new version of the ball was manufactured for the 2003 FIFA Women's World Cup.
It was also used in the 2004 Summer Paralympics and the 2004 African Cup of Nations.