A well-worn and well-used black briefcase. Has carried many sandwiches to the office in its time.
I used it expanded to take more contents (I had a thick reference book to carry around), and one of the 4 clips for this has now torn through. But it should still hold if you want it to appear slimmer.
Uses a combination lock which you can set when the case it open (no special tools required)
Black expandable briefcase (West Bridgford NG2)
This offer has been gifted to someone and is no longer available.