The product is a Nike Chelsea Football Shirt Jersey for the 2021/22 Home kit, featuring the number 21 on the back. This officially branded item is designed for adults and is of medium size, making it suitable for fans of the English club. The main colour of the shirt is blue, representing the classic colours of Chelsea Football Club, based in England. This shirt is considered sports memorabilia and is a must-have for any Chelsea supporter looking to show their support for the team during match days.