The Pro Rolling Backpack in BlackA versatile carry on that rolls when you want it toand wears like a backpack when you need it to. Built from ultra tough ballistic nylon, The Pro Rolling Backpack combines smooth rolling ease with hands free flexibility in one streamlined design. No switching bags required. Ultra tough ballistic nylon construction resists water, daily wear, and abrasion. Roller + backpack hybrid design with two smooth rolling wheels and stowable padded backpack straps