Sanwa Direct Carry-On Backpack, Large Capacity 35L, with Casters, for 2-3 Nights, 200-BAGCR010BK

This carry-on backpack can be used in two ways: as a carry-on bag or a backpack. It's made of highly durable polyester fabric with a PU coating that protects it from water. When used as a carry-on bag, it makes it easy to carry heavy luggage at the airport, on the train, or on business trips. When used as a carry-on bag, it has two caster wheels, a three-position adjustable carry bar, and the shoulder strap can be stowed away. When used as a backpack, it leaves both hands free.