This is an absolutely wonderful bag.  It has three large compartments, each with small zipper compartments and other pockets for cell phones and such.  There is one good sized outside compartment with a small pocket in it. There is a short strap inside with a lobster claw clasp to attach whatever you want, and another long strap with a small purse with a pocket for your driver's license and a zipper compartment for change, or whatever.  This can be detached from the bag if you wish.

The straps are sturdy and attached with very sturdy metal lobster claws to a metal ring.  They can be removed if you wish.

I liked this bag so well I bought a second one.