The most common thing-or the roules- for the national teams is to wear on their jerseys the national colours.But for some teams that's not the roule!!!!!The best example is the nat.team of Italy which their jersey colours are blue and white!!!!!!!!!Some other teams around the world with different colours are:Malaysia(yellow-black), Slovenia(green-white), India(blue-white),
Venezuela(burgundy-white), Japan(blue-white), N.Ireland(green-white), New Zealand(white-black)!!!!!!!!!!