Pannier bags

Cheap, but waterproof.  Will be used rarely. What do you recommend 

Although he means RhinoWalk, which is an even offer sounding name. 

I've got an M77 who's got one of their giant saddlebags and found it ok on a long ride. That's all I've got to contribute. 

I use Ortleib, but then again I use them 4 days a week. Barney makes a good shout with Decathlon stuff. I have a few things for cycling from them and they all work well and pretty good value.