Khaki Blank Ball Cap. Don't see the hat you want? Decorate your this blank cap at home by combining patches and badges for a look that is all your own. One of our friends here recently put together a hat for his brother that was assigned to the 73rd Engineer Company, 1st Brigade, 25th Infantry Division. Talk about a cool looking hat. Do the same for your hat or friend's hat by adding rank, hat pins and ribbons. Each hat is fully adjustable for size, has a padded sweat band, has a triple stitched bill and reinforced vent holes for comfort.