Minky is a super soft modern fabric that feels like plush velour? It's softer than fleece with a kind of short fur texture. It comes in plain and with dimples. I first saw it used about 5 yrs. ago in baby blankets. Some people like it for backing their quilts because of the cozy texture. I believe it is a man made fiber and has more stretch selvage to selvage and less stretch on the lengthwise. I haven't used it for a quilt back yet because it is a little trickier to work with. The one thing it does do is make lots of fluffies when cut. Maybe someone who has worked with it will give you more info.