This is size medium on the tag, there's not much stretch to this and I couldn't get it on (I'm a flat chested size 8 medium)... My mannequin is a size medium also and couldn't even close to getting it on, which is why it's pictured hanging...it really fits closer to a extra small/small but please look at the measurements and ask any questions before purchasing....bundle and save on shipping 😁... tu#44