When I travel, I carry a lite $15 Amazon full cover. Come in a bag and travels pretty easily. It keeps dew and most rain off the bike but also things like sap when camping in the woods. In addition, if I stop in a national park and hike so I'm away for a few hours, it solves a security issue. I find that without the cover, the bike and gear attract lots of attention in the parking lot; folks stopping by. But fully covered, folks just walk by without even looking. Yes, I still cable lock everything, as best I can but the full cover is a big part of the security solution.