This backpack has lots of room! I don't use a purse I normally just leave a bag hidden from view in my car. I can fit a change of clothes, laptop (and charger), kindle, toiletries bag, at least two pairs of glasses (in separate hard cases i might add), and so much more! My mother has a purse with this luminous geometric design and gets compliments everywhere! The USB port wire is removable so you can run your own cable through if you want to. (there is also a tiny zipper to the USB port area that can be closed from inside of the bag. Be careful to not drop anything between here because it will go between the lining and shell of the bag.)