alternate and limited-time uniform designs. A third alternate uniform was introduced in 2006 for home games during interleague play. These were primarily white with crimson sides and shoulders outlined by yellow piping along the raglan lines. The left side of the chest featured the cap emblem, while the right featured the player's number in crimson outlined in yellow. It was redesigned for the 2010 and 2011 seasons and worn at several games played in the Tōhoku region before being discontinued. The chest displayed the words "Tohoku" and "Rakuten" in crimson, with the "E" logo moved instead to the sleeve and the player's chest number removed altogether. The yellow piping was removed in favor of yellow and white stripes around the sleeve cuff. Other than the third alternate uniform, the Eagles have also worn many limited, seasonal uniforms throughout their history that often have unique designs, colors, and sleeve patches. Starting with the 2007 season, players wore special uniforms during a limited, home-game stretch dubbed "Fan Club Day". From 2007 to 2009, each season's uniform was selected from a pool of fan-submitted designs and were variants of their white, home jersey. After skipping the 2010 season, the event returned in 2011, however the design contest was no longer employed. In an effort to fill the stands with color for the event, the jersey was changed to crimson, a color traditionally used only for road games, for 2012 and 2013. In 2014, these jerseys were rebranded as the "Fans'" uniform and were worn for home games played throughout the Tōhoku region. To reflect this, the Eagles' chest logo was removed from the crimson jersey and instead replaced with the word "Tohoku". A patch was also added to the sleeve that season to commemorate the team's 2013 Japan Series win. This general design continued to be utilized for Fans' Days through the 2018 season. For the 2019 season, Rakuten's fifteenth, the Fans' uniform was changed and again borrowed the home jersey design, however in grey instead of white. The next year, the same design was kept but the base color was changed to black, and it would be worn again in 2021 after the COVID pandemic limited fan attendance in 2020. In addition to the various Fans' uniform iterations, the Eagles have worn several themed seasonal uniforms throughout its history. The first was introduced in 2011 to celebrate the team's seventh season, a