 Complete the following phrase:  For many years Arsenals away colours were white or navy blue. However, in 1968 the FA banned navy shirts they looked too similar to referees black kit so in the 196970 season, Arsenal introduced an away kit of yellow shirts with blue shorts. This kit was worn in the 1971 FA Cup Final as Arsenal beat Liverpool to secure the double for the first time in their history. The yellow and blue strip became almost as famous as their iconic red and white home kit. Arsenal reached the FA Cup final again the following year wearing the red and white home strip and were beaten by Leeds United. Arsenal then competed in three consecutive FA Cup finals between 