I also use Crayola Washable markers with the fine point. Again, test first...don't ask me why! It was the brown on the yellow fabric I think.
I use the fine line purple erasing markers, they disappear after 24 hours completely. I mark as I go with these.
The blue wash away markers work great on everything but pink. They some times hang on there...
The blue Chaco chalk sometimes has an issue, but I haven't had a problem with the white chaco