At Jo Ann's look For Roc Lon 404 or 403( one is bleached the other is unbleached) premium - pre-shrunk , perm press.. this will be on the end of the bolt. There is still a bit of shrinkage but not as much as the other Roc Lon muslins and some other brands found in chain stores. FYI Roc Lon makes many different grades/qualities of muslin. When you find one that suits you look at the end of the bolt for the number and record it somewhere. I made the mistake once! and learned a valuable lesson.