The Adidas Finale is a brand of football made by Adidas. It is the current official football of the UEFA Champions League, Women's Champions League, and the Youth League; after Adidas took over the contract of official supplier from Nike in 2000. The internal and external design of the ball changes reflecting improvements to football technologies taken from other Adidas-produced footballs. The external design is the "Starball" based on the stars of the UEFA Champions League and the Women's Champions League logo. Each year's ball keeps the branding name of Adidas Finale, excepting suffixes to designate the year. Usage During its introduction the Adidas Finale was only used in the latter stages of Champions League competition; it was not uncommon to see other balls in the early rounds, usually provided by the kit manufacturer or the ball supplier for the domestic league of the home team, including other Adidas balls. However, from 2006–07, the Adidas Finale had been used in all stages of the competition, including the play-off round which was introduced in 2009–10 followed with the group stages. The balls can also be seen in other UEFA competitions. These balls are also occasionally used in the UEFA Women's Champions League with similar graphics. Construction The ball is made by Adidas as the German brand took over the contract from Nike in 2000, and was firstly developed based on the Adidas Terrestra Silverstream, the official match ball of the UEFA Euro 2000 in the Netherlands and Belgium. This ball was also made with the same type of materials and construction used for the Adidas Fevernova, except, of course, the graphics. The Finale ball incorporates a unique design that was inspired by the UEFA Champions League "starball" logo. The Finale is softer, faster, and more accurate than any other Adidas football before and it also features a layer of highly compressed, gas-filled micro-balloons of equal size (syntactic foam), proven during Euro 2000 and probably contributing to one of the highest average goal rates in a major tournament. Until the final of the 2005–06 season, the Finale used the traditional truncated icosahedron panel design for their balls. From then on the panels are the same as the Adidas Teamgeist ball. From 2004–05, the ball structure was the same as the Adidas Roteiro balls used for UEFA Euro 2004, which had thermally bonded panels. Since the 2010 final, the panels took the shape