The Boston Red Sox are wearing yellow jerseys as part of their City Connect alternate uniform designed by Nike. These yellow and blue jerseys pay tribute to the Boston Marathon, with colors inspired by the marathon's branding. The design honors Boston's resilience and unity following the 2013 Boston Marathon bombing and celebrates the spirit of Patriots Day weekend when the marathon takes place. The jerseys feature "BOSTON" in stencil font across the chest, and the sleeve patch shows the area code 617 on what looks like a racing bib, symbolizing the marathon runners' bibs. The team adopted these yellow jerseys as a bold departure from their traditional red, white, and blue and has integrated them into their core rotation due to their popularity and the team's success while wearing them. Starting in 2024, the Red Sox made these yellow City Connect jerseys a regular part of their uniform rotation for home games on Saturdays, replacing their previous blue alternate jerseys. This choice reflects the city's boldness and the marathon's cultural significance to Boston.