I only work with natural fibers, mainly cotton, linen, silk and wool. There will never be synthetics in the peices I sell. Each fiber has a different relationship to the natural dyes, and I love to discover the different spirit a color can have on a different fiber. I also prefer to use buttons made of metel, glass, shell or wood instead of plastic, but ti do occationally us a pretty vintage plastic button. I mostly use vintage buttons that I collect.