Business computer backpack

Package internal structure: ID bag, mobile phone bag, laminated zipper bag, zipper pocket, computer pocket, camera pocket Open cover: zipper buckleMaterial: Oxford clothLining texture: polyesterStrap root number: double rootPopular elements: car suture Lifting partOuter bag type; inner patch pocketBag shapes: square vertical section With or without tie rods;Carrying system; physiological curve back plateColor; K001 gray, K001 black, K001B blackSize: gray,black:15.6 inch ;A~D:17.3inch