Duffels are rectangular bags with handles and typically a shoulder strap. Duffels are often made of nylon or leather and used for short trips or commonly used as a gym bag.
About Luggage:
Luggage is any number of bags, cases and containers which hold a traveller's articles during transit. Types of luggage include suitcases, duffel bags, and tote bags. Today many types of luggage have wheels as an added convenience.
About Rolling:
Rolling refers to any type of carry-on roller bag or luggage that features propelling rolling wheels underneath for easy transport on many different types of surfaces. Upright rolling bags usually have concealed telescopic handles that can be extended and adjusted to fit the person's height for maximum ergonomic benefit.
