3. The Underwire Support Doesn’t Rest against Your Skin

The underwires of your bra are designed to lay flush to your skin. If they are pulling out from your body at an angle, your bra is in need of replacement. An underwire that lays flush against your skin gives you more lift and support. Additionally, if the underwires are misshapen or cutting into your body, you need to replace your bra. The underwire should not cause you discomfort in any way.