Ortlieb Twin-City Urban is the perfect accessory for the midweek commuter. The Ortlieb Twin-City Urban can be used as either a pannier bag or a shoulder satchel. Simply click the bag onto your rack using the Quick-Lock 2. 1 mounting system and detach the shoulder strap. Once you arrive at your destination, quickly and easily remove the bag from your rack, fold the flap over to cover the attachment elements, reattach the shoulder strap and off you go with a stylish satchel. Large enough to carry a laptop or tablet, a wallet, smartphone, water bottle - anything you may need, and compact enough to navigate smoothly through the crowd. The Ortlieb Twin-City Urban is waterproof, wear-resistant, and looks fantastic!