This is a bag every savvy traveler should have in her collection. Its compact. yet holds enough for at least a few days away and fits easily in the overhead compartment. Best of all. its super lightweight and folds flat in its own case for convenient storage options. Unique collapsible 2-wheeled trolleys come with matching zipped storage case. Durable and water resistant PVC reinforced Nylon. Vibrant Fashion colors. Carry-On size and weight allowances vary by airline. If the bag is overstuffed. it may not be accepted by the airlines.