Well, I already had some silk I bought on sale to use, so I used that. And it does not go all the way to the top of the bag. About 5" short. but, that's what I have, so that's what I do.
I already did some sewing last night on this. I'm leaving a 1 to 1.5 foot gap at one side on the top.
Man, silk is somewhat difficult to sew. My feed dogs aren't pulling it very well, and that is WITH a walking foot. I'm probably going to play hell doing a flat fell seam on this stuff too.
Thanks for the info.