I purchased a Medium in Green.  I mostly carry, consistently, a Galaxy Pad, toiletries, chargers, etc.  Had three straps.  One Cross Body, two for shoulder usage, and two for hand carrying.  Two small pockets on both ends that would fit a can Coke but nothing bigger.  It has one outside zipper pocket that I place my phone in mostly and it has held up fine.  It feels similar to a jean material outside.  The inside is made of a cheap-ish satin.
I love the fact that the strap, if ever tangled, can easily be twisted with out having to take off the purse to readjust the strap.  The hooks swivel to any direction.  To me that's a big safety issue so I'm glad these swivel.
The only complaint I do have is that the small pocket inside the purse did come unsewn from the purse.  I threw in some quick stitches and it's doing fine now.  Pretty durable, I've had to carry books in it and it help up well.