The good muslin is at Walmart (sorry but true..lol)and it is called ROC-ION which is Rockland Industries out of Baltimore, Md. It is 90" 100% cotton Wide permanent Press fabric. It has very little shrinkage. I know this because I don't wash my fabrics before sewing. I have never had any problem with this muslin. It's great for quilts. I get it for $4.77 a yard. It holds up wonderfully, I kid you not..it has been kid tested by me...