Does anyone know the name of the tartan and maker of Duncan's kilt?

I was thinking the other day that Duncan in the series is a pioneer, I know of no other show that has promoted the kilt in the casual way Duncan does, ie, short socks, hiking boots and sweater/jumper.

Hamish, did you discuss kilts with Hamish Clarke when you met him?
Does he know what an influence he's been on others?

Rufus, series 2 on DVD will be released on May 4th