freddie in pvc clothes(it was in the seventies but when?)

from which concert is this footage?and that gig with his shirt with 'heaven' on it?from what is that

PVC was 1978 -9, which then became leather in about 1980, sometimes with kneepads.

Without seeing a pic of what you're talking about, this is the best I can do.

1980/1981. He wore leather trousers then. I believe it was their Game Tour.