Over the years there have been many lines of fabrics come & go... There are many good quality muslins on the market. Muslin is one of those utility fabrics that comes in many weights, weaves, and quality. It can be found as loose and thin as cheese cloth and as heavy, stiff as canvas and everything in between. For quilting a medium weight muslin is usually a good choice. Fabric.com has quite a good selection of muslin fabrics and you can order swatches so you could see/compare the differences