This Rapid Origin Zip 25-litre backpack has a large single compartment easily accessible via 2 zips. The interior is organised by zipped mesh pockets and a large padded area for storing a laptop.
A compact design with no side pockets makes it ideal for urban use. There's also a discreet velcro-closed pocket on the back of the bag and a pocket for glasses on the top.
It's covered with soft loops so you can add pockets and a velcro space for your patches. The shoulder straps are reinforced and padded for optimum comfort.