Tsumugi Fabric A deep navy blue, almost black. It has slubs and is a thin, crisp fabric. There is no indication, so I can't say for sure, but it's probably silk. Photo 4 ↓ Looking at the back, there are color irregularities that look like stains. I think it's just the accumulation of slubs that makes it look that way, but I don't know for sure if that's how it originally was. It doesn't show on the front, so please rest assured. There are no other noticeable stains, but it has been stored for a long time. Width: 37 cm