Leather courier and messenger bags have been around for a long time. I have seen people, in writing or in verbal explanation, attempt to distinguish the difference between the two leather bags. Actually, there is little or no difference between the two cases. The dictionary usually uses one term to synonymously define the other.
The courier or messenger bag is distinguished from other leather briefcases and bags by the size, shape and style. They usually have a flap from the top of the back over the main compartment to one-half or full coverage on the front. This flap provides protection and a place to put another zippered pocket or to attach smaller compartments to organize and store smaller gadgets. They can be a horizontal or vertical format and be as small as a man bag or document case; or as large as a laptop case or satchel - such as a mail bag.
The courier or messenger bag is distinguished from other leather briefcases and bags by the size, shape and style. They usually have a flap from the top of the back over the main compartment to one-half or full coverage on the front. This flap provides protection and a place to put another zippered pocket or to attach smaller compartments to organize and store smaller gadgets. They can be a horizontal or vertical format and be as small as a man bag or document case; or as large as a laptop case or satchel - such as a mail bag.