This is a canvas bag-in-bag. It comes with a shoulder strap, so how about using it as a sub-bag for travel, etc.? It's new and unused, but please understand that it has been stored at home, and there may be some size discrepancies as the measurements are approximate. Size: Height: 15cm Width: 25cm Bottom gusset: 7.5cm Top width: 4cm There are two pockets and a zippered pocket inside. There is also a pocket on the outside.