Front opening paper waistcoat thing

Hi

I know what I’m looking for, but no idea what I should search for to find it. Hoping someone can help.

When I had my chest surgery consultation I was asked to change into something that was a bit like a paper waistcoat. It only went to my waist and opened in the front. Didn’t have anything to tie it closed, and was open most of the time for a breast exam anyway.

I’d really like to buy one to relive that experience and have tried various searches, but nothing comes up. Does anyone have any idea what it’s likely to be called?

Thanks

Here you go...

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F201865331124

That’s exactly what I’m looking for. Thank you!