According to Adidas, the grey away kit aims to "honor the color of the trophies that Real Madrid have won throughout their history, as well as those that are still to come."
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Barcelona
Trivia
The hoops (used for the first time in the club's history) represent the horizontal stripes of the Catalan flag. Also, Barca are reportedly set to secure a new deal with Qatar Airways beginning in 2016-17, doubling their shirt sponsorship deal to around €65m per season.
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Bayern Munich
Trivia
The diamond pattern at the bottom of the home and away shirts is inspired by the Bavarian flag.