Now they look like 75% of the kind of thing I had in mind!
Loose fitting without being baggy enough to be annoying when running, water resistant and don't make me look like a chicken.
I see RH makes a mans-length version too so I might try to track some down to try on unless anyone thinks these wouldn't be that good for running in.
Oh, and IanR - thanks for the Saucony tights pointer, but just seeing the picture of them makes me shudder at what my wife and darling daughter would say