Cagliari launched the new Home, away and Goalkeeper kits for the 2008/09 season made by Macron. The official red and blue colours of Cagliari mirror those featured on the stemma of Cagliari.
The red parts of the stemma are a reference to the coat of arms of the House of Savoy, a family which was previously the monarchy of Italy and more relevantly to Cagliari in particular, the Kingdom of Sardinia.
The blue part of the stemma features the sky and the sea, also a castle; this is because the old historic center of Cagliari is walled and called the Castello. Due to the use of these colours on their shirt in halves, the club is commonly nicknamed rossoblu.
Cagliari have had several different logo designs during their history, all of which feature the Flag of Sardinia. Usually the badge also features the club colours, if there is a change the main difference has been the colour of the border or the shape.
Currently the badge features an upright-oval which is coloured in blue and red halves, it features the club's name in black. Inside this is an Old French-shaped escutcheon with red and blue halves, with the colours the opposite way around to the outer layer; inside this is the Flag of Sardinia and the club's foundation date, 1920 in black.
Interestingly, the badge was not changed to match the change in the Sardinian flag in 1992, when the moor's heads were turned to the right; in Cagliari logo the heads still look to the left.
Thanks to FDV