When I'm shopping for sports bras, I spend some time seriously thinking about how my workout clothes impact my fitness. If I've been doing a lot of Pilates classes at home, I'll probably want to shop for sports bras that are designed for low impact but that also won't irritate my back with a ton of straps. And if I've been pounding the pavement running, I'll narrow down my choices to high-impact sports bras that offer tons of support. So before you go shopping for running tights and sports bras, I encourage you to think about what workout you're spending the most time doing. When you're ready to shop, I've narrowed down some of my favorites right this way.