These things are great! Roomy fit. Sturdy. Protective. Utilitarian.  I use mine as a light jacket. There are SIX pockets! I pack them with small items and other stuff Ill need on the move. I can put enough stuff in them to enable me to carry other kit in a small sling bag. I zip through Airports and Hotel lobbys, get in and out of taxis easily and don't huff and puff wrestling luggage! Think Indiana Jones here. This freedom requires getting used to!  Since I need formal attire on cruises I use my Osprey Roller there.