Structure and characteristics : head layer leather current the man brief case with should strap,,shoulder bag, Inside with cellular phone bag, purse bag, pen bag andside bag(keepA4 documentses, data), the outside side contains zipper bag(can keep a cellular phone, pen, datas like document,etc), the shoulder of this pack can regulate,Being this style of to forgive quantity is specially big, can accept 10 inch portable computers, products, such as document and various data...etc., suitable office worker, travel, be on business a series in general use.