As usual I'm late to the party. I wear a discontinued style of Jockey underwear. It's a low rise that is a white brief that's skimpier than what they offer today and slightly larger than a bikini. It has no fly. It keeps things in place, "butt" is small enough to make you feel as though you are wearing nothing.
Important! I also air dry them. Never in the drier. They will last forever! Unless someone is overly anxious and literally rips them off of you.