I just came across a lady in the restroom who had one some very casual open toed sandals with dress pants. Ok, I won’t write her up for mixing a casual shoe with pants that are dressy, but I will write her up for wearing panty hose with the outfit. In the first place, you’re wearing pants, so we can’t see your legs, making the hose under the pants useless. But you’re wearing sandals, so we can see your toes (and most of your feet, in fact) and panty hose with a sandal is never a good look. Never.