It can be a jungle out there in the city streets so keeping your balance is key. But its hard work too. So having a backpack thats waterproof" keeps the load close to your center of gravity" and offers superior ventilation across the back is paramount. The Deuter Amager Backpack 25+5L does just that" thanks to the effective combination of PFC-free waterproof body fabric" comfortable Deuter Airstripes back system with reduced contact surface" Air Spacer mesh covering the back system" ergonomic" perforated shoulder straps and hip fins" and adjustable sternum strap. Inside" there is ample space for work documents and a laptop" or even a change of clothes" and a zip-around expansion section on the front creates more room when required.