kilts in the rain.

[Mel1721L]

I have a Barbour Burghley, I think it is, which does have those straps. They are lower on the leg, probably about mid calf, and could be hooked below the kilt. My Inverness cape is wool fabric and not waterproof, so I would end up with TWO layers of sodden wool, if I wore it in a hard rain. The Burghley and various pommel slickers are nice, but men in trousers manage well enough exposing their legs below the knee to the risk of rain, so kilted gents can probably do the same.
Part of the problem is how your legs look sticking out of a long coat- as if you had left the house with only your socks on. Notice most Inverness Cape illustrations show the cape open to show the kilt underneath.

I vote mid-calf waterproof of your choice and a good umbrella.

OOOOPS, I meant Mid-THIGH. I vote thigh, not Calf

Yes, I think it would look a bit odd, could wear it open I suppose. I never carry an unberella, I prefer to feel the rain.