Preheat the oven to 400 F. Turn on convection mode. Wash the potatoes thoroughly and dry well with paper towels. Poke holes in the skins with a fork all the way around.
Rub the potatoes with olive oil all around so skins are well coated, sprinkle with sea salt and pepper. If you want the crispiest skins you should place directly on the rack (if so the oil may drip a bit to the bottom)
Or you can place in a baking dish. Bake for 40-60 minutes. (timing will vary depending on how large and thick they are)
Check for doneness by piercing them with a wooden skewer or knife. If it slides in easily and the skins are crispy they are ready.