Although the baseball season is still in the spring training phase when St. Patrick’s Day rolls around, some teams celebrate by wearing St. Patrick’s Day themed uniforms. The Cincinnati Reds were the first team to ever wear St. Patrick’s Day hats in 1978. The Boston Red Sox were the second team to start wearing St. Patrick’s Day hats in 1990.
Many teams have since started wearing St. Patrick’s day themed jerseys, including the Philadelphia Phillies in the 1980s and Boston Red Sox in 2004. Since then it has become a tradition of many sports teams to also wear special uniforms to celebrate the holiday. Other teams celebrate by wearing kelly green hats. These teams include: the Chicago Cubs, the Chicago White Sox, the New York Mets, the San Diego Padres, the Atlanta Braves, the Pittsburgh Pirates, the Kansas City Royals, the Seattle Mariners and the St. Louis Cardinals.
Nearly all major league baseball teams now produce St. Patrick’s day merchandise, including Kelly green hats, jerseys, and t-shirts.
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