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The Boston Celtics are an NBA basketball club headquartered in Boston, Massachusetts. From 1957 until 1969, the Celtics won 11 of 13 NBA championships, making them one of the most successful clubs in sports history. They have won 17 NBA championships in all. The Celtics were one of the founding members of the Basketball Association of America, a forerunner to the NBA, and were created in Boston by Walter Brown in 1946. (established in 1949). We have you loaded if you want a jersey for a superstar Boston Celtics player or a bespoke Boston custom celtics jersey. Prepare for all of the action that the newest Boston Celtics players will wear once they are chosen. Fitnezzi is the finest place to shop for Boston Celtics clothes and accessories since it offers flat-rate delivery and ongoing specials throughout the season. Don’t miss out on Fitnezzi’s freshest and greatest Boston Celtics gifts and accessories, as well as tons of other Boston Celtics products.