When you go on vacation it is useful to have a good travel bag. A travel bag is soft and has no frame, unlike a suitcase. The bag can be filled to the maximum and due to the soft exterior it fits easily in the trunk of your car or under the bench of your camper when you drive. Often a travel bag has a shoulder strap so you can easily carry it over your shoulder and keep your hands free. In fact, the bag has two shoulder straps than you wear it as a backpack.