Here are a couple shots of a "pea coat" I recently purchased from Old Navy.




Not seen in the pic is my sporran which is completely covered by the coat when closed.

I suppose one could alter the front and put in a cut away for the sporran. You would loose some of your pocket depth.

The back shot shows a good portion of the kilt is covered. Granted I have short legs but that is a 24" long kilt and about 7" is still visible.