Yeah, if you're mounted, go full black. If you're on foot, the most practical would be black helm and boots, with a leather jerkin. That does look rather bad though... Keep in mind that all things you're wearing and using add to your weight. So if you have a sword and shield out, but two packs of throwing axes in your other slots, they're still slowing you down. And as of the last patch, if i'm not mistaken, once you use up a projectile, its weight is deducted properly. Personally i try to find a balance between what is practical, and style. Whats the point in owning if your character looks like a misfit bum?