<P> In 1992, the Yankees along with all MLB teams, had an MLB logo on the back of their caps for the first time . The following year, the Yankees became one of the last teams to wear a cap with a green underbrim . They did not switch to a gray underbrim until 1994, when most teams had been wearing a gray underbrim since the late 1980s . In the 1996 World Series, the Yankees, along with the Atlanta Braves, became the first teams to wear their caps with World Series patches sewn on the side . In 1998, the Yankees had the number #39 sewn on the back of their caps, next to the MLB logo, for Darryl Strawberry, because he was suffering from colon cancer at the time . When the MLB season opened in 2001, it was the 100th Anniversary of the American League . The Yankees had an AL 100th Anniversary patch on the side of their caps for the opening day series . When the Yankees celebrated their 100th Anniversary in 2003, they had a patch on the side of their caps, commemorating it as well . The Yankees along with all MLB teams stopped wearing wool caps, beginning in the year 2007 . The new caps now have a black underbrim to reduce glare, and a more 3D MLB logo on the back . In 2009, to celebrate the inaugural season at Yankee Stadium, the Yankees had an inaugural season patch on the back of their caps . It is the first time in MLB history that a patch was in the back of a cap instead of just the MLB logo . However, the Yankees players that played in the 2009 Major League Baseball All - Star Game, in St. Louis had the regular MLB logo on the back of their caps . Starting in the 2010 MLB season, the Yankees MLB logo on the back of the caps and the back collar of the jerseys had gray behind the bat of the MLB logo instead of the usual red, which was present on Yankee caps since 1992 . </P> <P> The Yankees use a block letter "NEW YORK" wordmark on the gray road uniform which has also become emblematic . There is also a print version of the full name, which is of a more fanciful script than the name appears in the team logo . </P> <P> The team colors are navy, gray, and white . The home uniform is white with distinctive pinstripes and a navy interlocking "NY" at the chest . The away uniform is gray with a navy "NEW YORK" written across the chest . The player number is on the back of the uniform jersey, and is not accompanied by the player name . A navy cap with a white interlocking "NY" logo is worn with both uniforms . </P> <P> Contrary to baseball legend, the Yankees did not start wearing pinstriped uniforms to make Babe Ruth look slimmer in the late 1920s and 1930s . In truth, the Yankees added pinstripes to their uniforms on a permanent basis soon after Ruppert bought the team in 1915 after briefly wearing pinstripes in 1912 . </P>

When do the yankees wear their pinstripe uniforms