I wouldn't know. I am just stating what other people have said.Daverson said:AFAIK, red was the original colour for the Santa suit. The green version was more popular in the US when Coca Cola started their marketing campaign though.
On a Santa suit colour related fact I can actually verify, in the USSR Stalin personally ordered their version of Santa ("Ded Moroz") should wear a blue suit, so he didn't get confused with the Capitalist Santa.
Wikipedia said:Santa was historically depicted wearing a green cloak.
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Images of Santa Claus were further popularized through Haddon Sundblom?s depiction of him for The Coca-Cola Company?s Christmas advertising in the 1930s.[8][33] The popularity of the image spawned urban legends that Santa Claus was invented by The Coca-Cola Company or that Santa wears red and white because they are the colors used to promote the Coca-Cola brand.[34] Historically, Coca-Cola was not the first soft drink company to utilize the modern image of Santa Claus in its advertising?White Rock Beverages had already used a red and white Santa to sell mineral water in 1915 and then in advertisements for its ginger ale in 1923.[35][36][37] In fact, Santa Claus had already appeared in red and white on the cover of Puck magazine at the start of the century.[38]