Shoulder bags - where?

[snickersnack]

I have precisely 45 minutes during my lunch hour on Monday to acquire a small across the shoulder type bag - this sort of thing only less fussy. Needs to hold a mobile, a purse, and a couple of other bits - pretty small is fine. I don't mind canvas, or any kind of fabric really.

I've had a look on the Topshop website and the M&S one but couldn't see anything so thought I'd prevail on the wise women of MN, who usually come up with something. I don't want to waste time going to lots of shops so even saying "don't bother, Next don't have any" would be most helpful!

Thanks.

[DELETED]

Fat Face have a plain one.

Comes in a few colours too.