Nursie, There is a knit stabilizer that is made for sewing knit fabrics. It comes in black and white. It is sold by the yard in the stabilizer section at JoAnns or other general fabric stores. It makes a great stabilizer for fleece as it is also a knit. I have a tendency to dribble on the fronts of my knit blouses and
Ts. Rather than throw or give them away I often embroidery something over the stain. That soft knit stabilizer also feels good against my skin. You also need to use the washaway stabilizer on the top of fleece. Good luck.