The Messenger Bag is an ideal Mursenary accessory.

 

The bag has a single strap intended to be worn over the opposite shoulder of the lower back where the bag rests.  This allows the wearer to (drum roll please) access the contents of the bag while wearing the bag!

 

The messenger bag can be worn over the “non-opposite” shoulder like a woman’s handbag, but you lose big style points for wearing the bag this way.

 

Most messenger bags come with a handle that allows the bag to be carried like a briefcase.  This is typically awkward for longer distances as the bag is not really balanced to be carried this way.

 

Messenger bags come in a variety of sizes and also go by other names, such as a courier bag.