The only problem I have had is with a chaco chalk marker. It just wouldn't come out. I can't remember the color. I think gray. I use the crayola markers, but, I always do a test on the fabric first. No surprises. I use air erasable ones too and haven't had a problem. I have also used the blue ones that wash out and for me they wash out. I think it is important to wash them in the machine with detergent, not just wipe. At least that has been my experience.