looks like the backpack club isn't so exclusive after all
i rock a
Chrome Ivan. a hair under 1700cuin, completely waterproof (rolltop). it's got enough room to carry a 5lb dell d810 laptop, full change of clothes (including shoes) and a rain jacket. it's got pockets on the outside that hold tools, spare tubes, arm warmers, wallet, phone, keys, etc. it's also green and makes me look like a ninja turtle. it's really comfy; nice wide straps, vertically adjustable chest strap so you can put it in a comfy place. it's also got another large zip pocket where i stuff my lock and pump. if you've got the main compartment packed you probably won't get much in here, but it's nice to have a divider. i thought it was a little spendy, but after a few months riding with it i wouldn't want anything else. my only complaint is the padding on the back isn't THAT cushy, and the air channels on it don't seem to be good enough when it's 75+ outside. or maybe i just sweat a lot, i dunno.