This backpack come with flap over opening with loop closure. Has one main compartment with zipper closure. Also, with one slip in in zipper pocket. Back side padded mesh. Inside back wall one 15-inch laptop compartment, inside front wall one zipper pocket. This backpack has one main compartment with zipper closure. Also, with two slips in in zipper pocket. Back side padded mesh. Inside back wall one 15-inch laptop compartment, inside front wall two slip in pocket.