Duffel bags make an ideal gym bag because they're spacious and easy to clean. They can hold gym clothes, an extra set of street clothes, shoes and personal items, such as shampoo. Duffel bags generally fit into the gym lockers, too, so you can take all your things with you and keep them safe.

Why do people use duffle bags?

Duffel bags are roomy and flexible, so you are able to pack a lot more things in there than a regular suitcase. There are also more organizational options in terms of more side and inner pockets for you to store your stuff in.

Can I use a duffel bag as luggage?

Yes, duffel bags are allowed as checked luggage.

As long as the bag fits the 62 linear inches required, you can use a duffel bag instead of a suitcase as checked luggage. While suitcases are a more popular choice for checked luggage, airlines don't specifically require that your bag has to have wheels on them.