National teams and clubs have been promoting the sale of football shirts to their fans
, supporting this trend; selling the teams' jerseys is not just a commercial move; teams want their fans to wear the jerseys because that is the best possible advertisement and marketing method for them. Fans wearing a jersey of a team show loyalty, popularity and enhance the quality of team in the eyes of other football fans.
The jersey became a trend, a mentality, a culture. It comes as no surprise that teams sign huge contracts with known manufacturers to create new football shirt designs and styles that will make the team's appearance stand out.