I disagree with Treespeed. I've tried several back-packs, but in my case a cheap shoulder bag was my ticket into the world of messanger bags. I disagree that it's all about look . . . I just use what works best. A loaded backpack (in my case) slowed me down, and kept me from riding low. I also found that back-packs swung me around. My "messanger bag" lays low and the load is spread over my back instead of being pressed down on my shoulders. It allows me to ride lower, and much faster. I'm currently looking for an upgrade to my $5 "messanger bag" . . . I think I'll be getting the Chrome Metropolis. (So I can be cool )

I don't mean to ruffle any feathers, but I'm just saying that a "messanger bag" works for me.

GoodLuck,
-Mehow