Sanwa Direct Carry-On Backpack, Large Capacity (33-48L), Expandable Gusset, Carry-On Fits 13.3-inch Laptops, Black, 200-BAGCR006BK

This 2-way carry bag can also be used as a backpack. When used as a carry bag, it makes it easy to carry heavy luggage at the airport, on the train, or on business trips. When used as a carry bag, it has double casters, a continuously adjustable carry bar, and the shoulder strap can be stored away. When used as a backpack, it leaves both hands free. When used as a backpack, it comes with caster covers and the shoulder strap is cushioned and adjustable in length.