This is a formal set consisting of a collarless jacket and a short-sleeved dress. It fit perfectly on me, I am 147cm tall and slender. The fabric is sturdy, so it can be used for a wide range of occasions such as entrance ceremonies, school entrance/graduation ceremonies, school events, recitals, and work. In fact, I wore it at graduation ceremonies as a staff member. The inner dress is short-sleeved, but I wore Heattech underneath and the jacket over it for warmth during the colder months. Because it is XXS size, it is highly recommended for petite and slender people. I think it's quite difficult to find formal wear in small sizes, so I hope to pass it on to someone who likes it! I purchased this before, but I have only worn it a few times, and there are no noticeable stains or damage, and it is in overall good condition. I think you can still wear it comfortably. Please purchase only if you understand that it is a pre-owned item that has been stored at home.