I understand exactly what you mean about skinny guys and kilts, I'm 6'-1" 170 lbs and athletic but my calves are very thin and I have no hips at all. I wear 8" high steel toe black work boots by wrangler in casual situations. Manly, tough, just worn enough to look rustic (yes they are clean, guys, I wear the kilt with respect) and they thicken up the look of my calves. I usually wear a good pair of high-topped Smartwool hiking socks that come to just above the boot by 2-3" to finish out the foot wear. I'm working on a sporran but my "kilt" belt is a 3" black belt with a large oval belt buckle with a Christian cross over embossed black leather I bought at a department store. Didn't want to go traditional on belts and sporrans yet. In casual wear (the bar) that sporran may be a bit much if you don't need the storage space for wallet, etc.