They surpassed the previous record of 263-5, set by Royal Challengers Bangalore in 2013
The German sportswear company said the white and silver panelled ball will be inscribed with the word 'peace' in English and Cyrillic script and would not be on sale to the public.
Saturday's final is taking place at the Stade de France in Paris after being moved earlier this year from original host city St Petersburg due to Russia's invasion of Ukraine, which Moscow calls a 'special operation'.