Place an orthotic insert only in a neutral shoe, which is a sneaker without all the foot-bolstering bells and whistles, says Jeffrey Ross, M.D., a podiatrist in Houston. "An orthotic adds arch support and stabilizes your heel and forefoot -- everything you need for your foot if it overpronates," Dr. Ross says. This means that putting an orthotic into a stabilit-style shoe, which already has those features built in, would be over kill. "The double support would prevent you from pronating enough," he says. Your foot needs some rolling inward and outward for a natural strike and push-off.