What is a Duffel Bag?
Today two types of Duffel bags are available, one is classic duffel, which opens & closes at the short end of the bag like laundry bags, on the other hand, modern duffel bags have a single zipper all the way across the bag's length. Anyway, a bag is considered Duffel Bag if it fulfill following criteria;Cylindrical in shape (length is more than width)Soft-sided, without any frame to hold its Duffel shapeLuggage sized (usually 8x8x16 inches)