The Philadelphia Phillies and Boston Red Sox are throwin’ it back on a Thursday.

Tonight the Phillies and Red Sox will wear their cap designs from the 1915 season, this is in recognition of the 100th anniversary of their World Series matchup held that fall.

Boston will be wearing a plain grey cap, so, use your imagination as to how that one will look. Both teams will still be outfitted in their 2015 jerseys.

Boston won the series four games to one, it was the Phillies first National League pennant.