I do a lot a long road trips here in British Columbia, Canada. It took a lot of research when I first bought the bike to find hard saddlebags and a hard tailbag. The product I ended up buying was from Hepco & Becker. I am happy with them - durable, completely waterproof, sufficient...
In June, we are planning a motorcycle road trip from Belgium/North of France to reach Wheels and Waves 2020. My buddy is not sure is going to be able to free himself for that. If anybody is looking for a good camaderie to ride to WW20 do not hesitate to reach out.