Made of quality 1mm thick oxford cloth and fine zip closure.High-quality fabric . bringing the comfort texture experience. make it have the characteristics of fashion and light.and easy to clean Expanding Briefcase:There is a hidden front pocket.can holding frequently used goods and small thing.Main pocket can protect your files from damageing and folding.all the stuff can be well organized inside Comfort and Convenience: Unisex design perfect for travel. business trip. college and casual. bring you convenience in different occasion.You can easily carry it for daily work. exhibition or meeting files Organise loose pages. important documents. letters. print-outs. leaflets. envelopes. business cards. photos & all sorts of other stuff with ease Size:12.2x15.3x3.1 inch(31x39x8cm)