I store and ship my tapestries in simple, unbleached muslin bags I make myself. Here are two examples. One has a printed label and draw strings. The other is labeled with a Sharpie. Both have the name of the tapestry and my name. The printed label is much nicer though. For more on the labels you can go here. I size the bags larger than the work so there is a generous flap. Be sure to use unbleached muslin so there is no issue over time with bleached fabric against your work.