Designed for short trips and weekends away the Thule Chasm Carry On boasts burly smooth-rolling wheels and offers a tough-as-nails outer that is also water-resistant just in case you hit some weather. Oversized wheels make hauling a large load through crowds easy as can be and a large zippered pocket keeps your passport phone and other essentials right where you want them. We like that the large internal mesh pocket separates clean from dirty items and the external compression straps help you adjust the bag's size according to how much you're packing.