Ortlieb Office Bag QL3
The Ortlieb Office Bag QL3 is the latest incarnation of Ortlieb's waterproof briefcase pannier. What's changed from the QL2 bag is the attachment system: it's still quick-release but the hooks are recessed, so the briefcase looks more businesslike when you're off the bike. Or as Ortlieb put it: 'Flat mounting elements ensure smooth back side.' Yep.