Utility Brushes
Robert Simmons Titanium -filberts and flats.
These great synthetic bristle brushes from Robert Simmons are my go to brush when I need to scrub in an underpainting or really any job where I wouldn't want to use my most prized brushes. They really hold their own to a lot of abuse. I've even used them to prime small panels. They are softer than hog bristle brushes and easier to care for as well.