The lining, i.e. the inside, of the cap symbolizes the regional identity of the graduate. Especially in earlier days, the students usually choose the lining to have the colours of their own student nations. Nowadays, the most typical lining is the white and blue, symbolizing common patriotism. However, the Swedish-speaking students usually wear red and yellow, or blue, yellow and white, while in Satakunta and North Karelia, the regional colours are still popular. The Swedish-speaking students in Ostrobothnia use black, yellow and red.