Just about every piece of nylon luggage comes with covers, so the manufacturer at issue may have some for you. I'm not aware of anyone who sells universal-fit covers, but maybe it's out there. Or maybe you can match something up. Being the ADV crowd, someone will chime in with a penny-tech solution I'm sure. LOL. A few years ago I decided to stop trying to waterproof soft luggage with covers, and instead waterproof the contents using ALokSaks, small clear Pelican boxes, etc. (the kayaking, backpacking, and bicycling worlds have some good cross-over solutions.)