Provided not only to cavalry troopers and artillery drivers, but to cannoneers as well, the poncho is a criticial piece of "mounted" equipment. It has been a long time since good copies of a U.S. Army ponchos have been available.  These excellent reproductions from South Union Mills feature a proper rubber coating applied after construction (not just glued together from rubberized fabric like most reproductions) , correct small grommets, and a Group Buy exclusive contractor stamp copied right from the original and not made in Microsoft Word with modern font.  And so you know you're getting a versatile piece of gear, the original copied isn't ID'd to a mounted unit, so feel free to use these when toting a musket as well!