Originally Posted by
arctos
I use an aluminized umbrella on tour for shade and/or rain protection when I stop in shadeless places for a drink or lunch. It is eight ounces. The same design is available at
Six Moon Designs

Ours are basically identical (and i believe I read somewhere that there are many brands made by the same manufacturer).
How did you carry it? Attached to the top tube? Straddling the rear rack+panniers?