A duffle bag is an ideal type of luggage that no traveler should be without. The duffel bag is one of the most versatile and functional forms of luggage. It can be used as a carry-on for plane trips, and can also serve as the perfect overnight or weekend bag. Duffel bags are available in a variety of styles, designs, colors and fabrics. Therefore, anyone from a business traveler, to a camper, or everyday vacationer, will find use for a duffle bag.