I am so watching for this, although I'm sure it'll be out of price range for years. But silk is tough if you don't wreck it in processing; even a faux silk coat is likely to be durable. Also it seems designed for quality rather than fashion: drawstring hood, flap over front closure, strap-closed sleeve ends, etc. Now if only it were a couple feet longer. *wist* It's hard to find even a marginally adequate coat anymore, now that most people rarely go outside more than a few minutes.