I have a 2004 Bigfoot
CB and use an Adco Designer series 34839 cover. It works good so far as I have my trailer parked under a cedar tree that sheds alot. The cover is the 15-18 size and is too big but works. I think the next size down might be better like the up to 15' size? If you get one and are able to return that might be the size to try first! Good luck!