Originally Posted by SSenorPedro
A thing to consider with those monstrosities is that when riding; you can not see behind yourself whatsoever. They stick way up above your shoulders.
-Pete
Hmm, that's a factor I hadn't considered....I thought the top part of the bag could roll down. So you're saying that it still blocks your rear visibility even if the bag's not full? I'm not planning on having to ride with it filled all the way very much.