i suppose the term "sling bag" could refer to many things, but in current colloquial american english the term refers to a bag designed much like a backpack but with a single strap that is worn over one shoulder and across the front of the torso instead of a strap for each shoulder, or a variation on such a design.

i suppose the term "sling bag" could refer to many things, but in current colloquial american english the term refers to a bag designed much like a backpack but with a single strap that is worn over one shoulder and across the front of the torso instead of a strap for each shoulder, or a variation on such a design.