This dual pannier magically transforms into a single shoulder bag when toted off bike. Durable fabric with clever reflective hits make this a champion on and off bike. Thanks to built-in magnets, all traces of pannier-ness disappear for carting over the shoulder or by the top grab handles. An internal padded 15" laptop pocket makes every commute a beauty. Do it in a downpour. The Tandem will keep the contents of your bag dry for several hours in the rain.