FC Bayern Munich 1989–91 Home Shirt – Authentication Guide The FC Bayern Munich 1989–91 Home Shirt features the iconic red base with the white trefoil logo, Opel sponsor, and three adidas stripes—used in Bundesliga, DFB-Pokal, and European competitions during Jupp Heynckes’s triumphant era (footballholics.com). Shirt Overview Design Features Variants & Notes Season Summary These kits were worn…