Constructed from 6.5 oz cotton/spandex, providing flexible movement and excellent comfort. * Longer length tank features built-in shelf bra (on adult sizes only) and narrow racer back to help you move freely. * High Point Shoulder Specs: YS = 20, YM = 21, YL = 22, AXS = 24, AS = 25, AM = 26, AL = 27, AXL = 28, AXXL = 75 * Chest Specs: YS = 10, YM = 11, YL = 12, AXS = 12 3/4, AS = 13 3/4, AM = 14 3/4, AL = 15 3/4, AXL = 16 3/4, AXXL = 17 3/50 * Junior Fit