A multiple backpack / Backpack

A laptop bag or a backpack that has to be carried while for a short trip makes us more exhausted. It is not easy to find a passport or small necessary things out from the bag that's messed up inside.
An each case is attached to the laptop backpack to make it practical. Thus, if you want to use only a net book, then unattach the net book bag only by a zipper. Also if you need a passport at middle of crowded airport, then unattach only the passport case. When you are out for the trip, then bring unattched hip-sak with you. The multiple backpack is made with full consideration for the users is good for short journey travellers or businessmen.