This is the info I have. The bolt is roc-lon made by Rockland Enterprises Inc.. Their website says all their stuff is made in the USA but this bolt says Pakistan. Hmmmm. I think I bought it in 2010 or so. Washing instructions: warm water, gentle dryer. I did it in hot water and regular heat in the dryer. Shrinkage was 2.5 inches length wise but negligible WOF.
I'm using it to back some squares cut from very light poly/cotton pajamas for a several memory pillows.
The bamboo makes this feel really silky and they are also using bamboo in batting.
Thanks for all your comments.