The Boston Red Sox are wearing yellow uniforms as part of their "City Connect" alternate jerseys designed by Nike. These yellow and blue uniforms honor the Boston Marathon and are inspired by its branding and colors. They symbolize Boston's resilience and unity, especially following the 2013 Boston Marathon bombing. The yellow jerseys have been popular with players and fans and have become a core part of the Red Sox's uniform rotation, worn regularly for home games on certain days like Saturdays and sometimes for special occasions around Patriots Day weekend. The colors and design celebrate local pride and have been linked to a strong winning record when the team wears them.