... polyester 600D Dimension: 39*40*5 cm Zipper and velcro closure system Brief caseItem:brief case, document bag, portfolio,school bag.Material: ... advertisements,exhibition.office.Customized designs,sizes and logos are accepted.Good for office documents and student filesNatural,eco-friendly,biodegradable,reusable ... ,high quality & flexible delivery time.Let's cooperate and build a green world together.