Long Bass Bib

I found an old thread on this, but it said there is no such thing as a long bass bib. The OP there said he played seated and his knee was leaving stains on the bass.

I play standing but wear shorts in this weather, same basic deal, would like something to protect where my left knee contacts the bass.

You know, we have a clothing store in town here that has a section called "Mostly Modest" - it's clothing for Orthodox Jewish women who choose to keep their bodies pretty well covered up. I need a "mostly modest" bass bib. Given the weather in this part of the world in the summer, having the top part of the bib is probably a good idea for me, too.

The thread I found went back to 2016 - anything changed in the last 4 years? About bass bibs, that is.

Thanks in advance.

-S-