The right running bra is just as important as the right running shoes, but too often, women are wearing bras that are too old, not the right size, or not the right kind, and that’s not good for the girls! Breasts are supported by skin and what’s called Cooper’s ligaments which can easily stretch without proper protection. This can result in irreversible sagging, as well as breast, back, and neck pain. It can even affect your performance. In short — the right running bra matters, and so does the right fit!