"Running shoes probably provide the best biomechanical support and comfort for feet during pregnancy," says Dr. Mendeszoon. Look for a pair made with flexible materials or that have adjustments so that they will continue to fit you throughout the day as your feet swell. Also, consider looking for a pair of shoes that offer just a little bit of compression to help reduce swelling (they should not be tight, though, and they should still have some flexibility to them). Finally, heat can make feet swell up whether you're pregnant or not, so it's important to look for shoes that also offer some breathability.