MacBean, Your questions are valid, but I am not so sure "raw" silk stains that way. Maybe it just doesn't show as much. I am thinking of the kind that looks a little like burlap. You see it sometimes made up into herringbones and the like. From a distance, it looks a lot like wool tweed. As for linen wrinkling, I don't think jackets do it as much as shirts and trousers, because of the way they sit on your body. And, when blended with wool, you lose some of that wrinkle anyway. On the other hand, all silk or all linen, or silk and linen, would all be moth-proof. My thanks to all who have responded. The weather here on the wrong side of the tracks was well over 80 today and is likely to be that way every day until Columbus Day, or nearly.