I made a bit of money out of that pattern @anniec I used to make it up in oilcloth with a different collar, detachable cape and a back vent so you could ride a horse in it. Sold dozens of them and they were not cheap but the horsey ladies loved them, much more stylish than a dry-as-a-bone when one is sitting on a $30k nag waiting for ones dressage class.
I probably should dust off the heavy duty machine and do that again, though I have no idea where Id get the fabric now. It would also mean cleaning out my workshop. The horror..