a display container for caps having transparent panels . the package frame is constructed from a single blank of sheet material , which has been cut to allow folding into a rectangular box with a protruding vertical rear double panel . the dimensions of the box are designed to accomodate a cap such that the bill of the cap fits securely within the rear double panel . a large window space is cut out of the box and rear double panel and is covered with a transparent plastic material . the display package completely contains the cap and also prominantly displays the front and the bill of the cap .