The 1958 Baltimore Colts season was the sixth season for the team in the National Football League. The Baltimore Colts finished the 1958 season with a record of 9 wins and 3 losses and finished first in the Western Conference. They would go on to defeat the New York Giants in what is hailed as "The Greatest Game Ever Played."

In 1959 the Baltimore Colts finished the NFL's 40th season with a record of 9 wins and 3 losses and finished first in the Western Conference, and defeated the New York Giants, 31–16 in the NFL Championship Game, which was the rematch of the previous season's classic title game, for their second consecutive NFL World Championship. Colts quarterback Johnny Unitas had one of the great seasons by a passer in NFL history. Says Cold Hard Football Facts, "Unitas's 32 scoring strikes was an NFL record –- he was the first and only to top 30 touchdowns in the NFL's first 40 years –- and remains the standard for a 12-game season. He was in the midst of his record 47-game streak with a touchdown pass, and connected on at least one in every game of 1959."

This wool winter cap features the Baltimore Colts' famous horse bucking through the goalpost logo along with "World Champs" on a patch on the front.