When talking about Army Green Canvas Messenger Bags, what usually comes first in mind are leather ones. This is simply because these are ordinarily connected with messengers of old, carrying leather bags over their shoulders while delivering packages and mail. However, one of the more popular materials for these bags is canvas. While canvas is definitely less sturdy than leather, it has its advantages. You can paint on canvas and attach small things on it and so on.
Messenger type gives the Punch Barrel Duffel Bag their starting characteristics, which are size, shape and working mechanism. Their popularity in schools comes from the fact that rectangular shape of books and notebooks is matched by the shape of the bag, allowing for maximum ease of storing and retrieving.