I use a cheap coated nylon jacket and pants from REI. I think they were made by Sierra Designs. They are waterproof, not breathable, very light in weight, and pack tiny. I have been pretty satisfied with them. I don't generally wear the pants on the bike, but have put them on in camp quite a few times. I have generally not found breathable fabrics to work very well for me. I wind up soaked in sweat any way.