Almost all patches we sell come to us in trade for artwork we do for certain squadrons. They are not mass produced and therefore in very limited quantities. We make a few ourselves and every now and then we run across a patch that is more common than others. In general these runs are all but a couple of handful patches given we are a small operation and considering how many people usually are in a certain squadron. Which means that in general, when we sell out we're out and most likely you won't see them again on our website. But we will try our best to keep it interesting for you guys and find new and cool designs as much as we can.