If you plan to travel abroad, a small hard-shell suitcase with spinner wheels will generally serve you best. Find a case made of long-lasting materials such as polycarbonate, with a TSA-approved lock, easy 360 wheels, and nice internal compartments. These are some of the features that distinguish brands like Samsonite, Travelpro, and American Tourister that are widely recommended because they provide a good balance between durability, weight, and cost.