Celtic Men's Home Licensed Retro Football Shirts, Football by Team in Size M, Sports Direct. Team's Celtic Home Licenced Retro Football Shirts celebrate designs from the club's history. Classic Celtic styling meets authentic detailing for a nostalgic soccer jersey that connects fans to legendary moments. Product Highlights • Authentic retro styling with vintage Celtic crest • Licenced jersey design with period-accurate details • Comfortable fit for matchday or casual wearLooking for alternatives to stores like JD Sports, eBay, SHEIN, ASOS, Next, Best Choice UK, Very, Decathlon UK, Argos, schuh, Temu, BuyBetter, or Nike Official? Discover our unique selection.