This is a padded sports bra meant for barbell work. Padding at the collarbones for barbell work. Lightly worn, but the inside size tag has come off. I know for a fact this is a size 6 / small. Features: Medium Impact Collarbone Protection Narrow contour under arms "Ladder" open back design in black, contrast yellow Striped design on ultra soft fabric, black inner lining Removable bra cups 44% nylon, 44%polyester, 12% spandex Custom Jacquard Band with "Chestee" logo repeat High Support (Minimal Bust Bounce) Care: hand wash cold or on gentle cycle and lay flat to dry