I am on the lookout for the same Elwood.I have seen a couple of Calvin Klein stone ones that I like ( This is the "Pinewood" ),but I will have to investigate a little further.I looked at some of the mackintosh brand,but it was not what I wanted.I never liked the bonded rubberised
cotton as it always eventually "blistered" and seemed stiff to me,however fine it was.
That looks a bit on the short side to me. We used to wear them about Knee length and as Lasttye says we bought them in Navy so that they could be also worn at school. I have a Tan/Beige Brooks Brothers Mac that is no longer in production but would now cost an 'arm and a leg' anyway.