:-)
However the 'interesting' results are all clothes which use the fabric backed stretch PVC material which is not what I want.
I did do quite a lot of searching before asking here, much of the problem is the 'noise' caused by kinky black PVC clothes and, rather to my surprise, by vinyl stickers for vehicles. In addition one tends to get a lot of hits for parcel wrapping film.
As I said you *can* get very stretchy PVC/Vinyl, in among the other 'not what I want' hits I came across quite a few for vinyl gloves, mostly from medical suppliers. I have actually bought some vinyl gloves (for protecting my hands from paint stripper) and they really are very stretchy.