This Etamine is biologically produced GOTS certified! It is a luxery heavy fabric perfect to felt upon or into. Because it has not been superwashed it can still shrink with the felting project. The fabric has not been washed, bleached or dyed so can still be dyed in any way you want with our natural dyes or our dupont classique! weigth ca. 115 g/m (= ca. 75 gram per m2).