Abstract: A backpack for carrying a laptop computer comprising: flexible front, rear, bottom and side panels the interior surfaces of which define the interior of the backpack, wherein the side panel extends along each side and across the top of the backpack and the front, rear and side panels are joined together along their perimeters; a compartment for storing a laptop computer in the interior of the backpack; a first closure means extending longitudinally along the side panel and transversely across the top to control access to the compartment; at least one adjustable interlocking assembly joined to the backpack so as to bridge the first closure at the bottom half of the backpack whereby pivotal separation of the first closure along the side and the top panels is restricted to a predetermined interval when the closure means is opened; and a pair of adjustable shoulder straps connected to the exterior of the rear panel for carrying the backpack.