Try this one https://kvsport.com/producto/campeonisimo/
Don’t be afraid because the price. I have owned several bibs, including a Mavic of 120€ or so (it was good for long rides)… but KvSpor bibs are much moooooooore comfortable.
Once I bought one and tried, I went for a second bib!
I had problems with my “ass” with more than 3-4 hours rides. And now I finish these kind of rides as new.
Ah, and the company is a family run business directed by a former Miguel Indurain mechanic… 