When choosing a travel duffel bag, it is important to consider the must-have features that will make your journey easier and more enjoyable. The best travel duffel bags will have plenty of space for all of your belongings, as well as a comfortable shoulder strap for easy transport. Additionally, look for travel duffel bags with several pockets and compartments to help you organize your belongings, as well as a water-resistant or water-proof exterior to keep your belongings dry in case of rain or other weather conditions.