How Many Is Too Many?
For the vast majority of the history of baseball, most teams wore just one type of cap per season. In the mid-19th century, "Road/Away" game caps began to appear. Then "alternate' caps and "spring training/batting practice" caps. In the 90s came patches on the caps of players in the All-Star game and on the caps of teams in the World Series, which gave birth to patches on caps for the post-season in general. Since then, we've seen patches on caps for multiple reasons, most notably retiring Yankees players and an American flag patch on 9/11. 1995 Atlanta Braves cap with World Series patch. In the last decade we've begun to see "theme" caps. Caps that may differ in design and/or color from the regular on-field cap for a specific team. Most prominently is the "Stars and Stripes" collection worn on the 4th of July and camouflage caps worn on Memorial Day. Teams have also done green caps environmental causes and pink caps