The Ultra Sateen is a really great fabric that I have fallen in love with. I have never found another type of sateen that is even close to the quality of this particular one. It will maintain its luster forever; the subtle sheen is due to the weave of the fabric and just not a finish that was added to the fabric. It has a beautiful hand, and you can see from my example below how gorgeous it is dyed. The sateen always shows off any stitching to its best advantage, and it is similar in appearance to silk when done, but it is much easier to work with.
Ultra Sateen dyed with Procion dyes.