Please help me find a particular style of bag.

So I was at the venetian in Las Vegas yesterday and someone wearing a particular style of bag that I have been wanting to get for some time now. What I want to know if there is a name to the style, who manufactures these types of bags and if anyone has any suggestions for them. I really love the style hope you guys can help. I appreciate any I can get. Crappy free hand sketch below.

It isn't dissimilar to those bags too much. The thing is that this bag I am looking for seemed more like a one piece where the bag is stitched to the straps like the (crappy) drawing insinuates.

Those cocoon bags are nice though. Thanks hammie.

Yeah a lot of those work actually, thanks hammie! That is the exact style I am looking for. Any1 else with styles like that, that they like?

Man oh man that binh sure it nice. TY for suggestion.