Celtic

Celtic is perhaps more closely associated than anything else with its iconic horizontal green stripes, known as "hoops." When the club was founded in 1888, they played in plain white shirts, and although green stripes were introduced the following year, they were vertical on a white background. It's not entirely clear who made the decision to switch to horizontal stripes in 1903, but according to Celtic’s own website, it’s likely that the club’s leadership at the time was inspired by an amateur team from the Govan district of Glasgow, St Anthony FC, who wore green-and-white hooped shirts. Ironically, Govan is traditionally a Celtic heartland, and many assume that St Anthony adopted their colours from Celtic—when in fact, it’s the other way around. Another bit of trivia is that it was actually Rangers who were the first to wear horizontally striped shirts, but after a disappointing season in 1882, they switched to solid blue, leaving the "hoops" forever linked with their archrivals, Celtic.

Celtic is perhaps more closely associated than anything else with its iconic horizontal green stripes, known as "hoops." When the club was founded in 1888, they played in plain white shirts, and although green stripes were introduced the following year, they were vertical on a white background. It's not entirely clear who made the decision to switch to horizontal stripes in 1903, but according to Celtic’s own website, it’s likely that the club’s leadership at the time was inspired by an amateur team from the Govan district of Glasgow, St Anthony FC, who wore green-and-white hooped shirts. Ironically, Govan is traditionally a Celtic heartland, and many assume that St Anthony adopted their colours from Celtic—when in fact, it’s the other way around. Another bit of trivia is that it was actually Rangers who were the first to wear horizontally striped shirts, but after a disappointing season in 1882, they switched to solid blue, leaving the "hoops" forever linked with their archrivals, Celtic.