his sports bra carries many of the features of other Zensah products (anti-odor, moisture wicking, breathable, light compression) and is seamless to prevent chafing. Racer back design with keyhole allows for movement and the lower v-neck design provides a flattering fit. Small is 32 ABC - 34 AB, Medium is 34 ABC - 36 AB, and Large is 36 ABC - 38 AB.  Specs: 49% poly, 41% nylon, 10% spandex