I pretty much wear whatever I've got lying around. Pretty much have to, since I have stinky feet. With a Utilikilt, it's usually the running shoes with some casual long socks (yes, pulled up - don't like the look of ankle socks with a kilt, nor the sockless look, just looks too weird). With a traditional, if I'm using running shoes, it's either off-white or oatmeal kilt hose with flashes that go with the kilt, as shown in my avatar. If I'm wearing boots, then it's anything but off-white. Same with casual or dress shoes.
-J