Here is the all-time classic, Pittsburgh Pirates "Pillbox" fitted cap. The comeback of this cap style began in 1976, which marked the National League's centennial anniversary. In commemoration of this event, a few NL teams adopted the late 1800's, Chicago-style pillbox cap with horizontal stripes. After the 1976 season, all teams went on to their standard 6-panel caps except the Pirates, who donned the pillbox style for 11 seasons. Below is a replica from American Needle of the Pittsburgh Pirates Pillbox Cap. This particular style is also offered in black with gold P and stripes. The cap is constructed out of two panels and closed off on top with a circle panel. Soutash ribbon is used for the horizontal stripes. The cap also features four eyelets, two on the front and two on the back plus black top button. The cap is finally finished off with a black top visor and green under. You can buy this cap from various retailers such Dugout-Memories, MLB.com, and of course American Needle.