for casual, Black or Brown hiking boots, hose down, combat boots, hose up or down (yes, I've seen the pix of scottish soldiers in boots, hose up, with flashes). try to have similar colors between shoes, belts, and sporran.

For an contemporary kilt, Keens and that ilk are the 21st century gillie brogue

Check out the thread on Grandfather Mt. for times for X-Markers to gather and blather