Unless I am dressing up for a very special occasion (extremely rare) I wear hemp/organic cotton bras. I have them custom made (48$) from an etsy shop. They are available in many colors, which makes them cute to wear under shirts (especially summer shirts).
I have always hated regular bras. I don't believe they're healthy, either, if they're polyester as most are. There are some studies that link polyester underwire bras to breast cancer. My sister had breast cancer and eventually died from it, so I don't want to tempt fate.