The breast won't contain muscles. Breast tissue is located on top of the muscles of your chest wall. Blood vessels and lymphatic vessels (a program of vessels that drains fluid) are located through the entire breast. Sports activities bras are occasionally employed for cardiovascular work out, athletics bras are created https://grok.com/share/c2hhcmQtMw%3D%3D_21b4ddf4-c274-418a-a078-c9d2af4898ff