This is a black formal set from TOKYO IGIN. It's size 11. I used it as a mourning suit. It's a long-sleeved collared jacket and a knee-length short-sleeved dress. You can wear it year-round. In winter, I wore a long-sleeved undershirt under the short-sleeved dress and put on the jacket. I bought it new about 10 years ago. I've worn it several times, but I've taken good care of it, so there are no stains or scratches. It has been dry cleaned. Here are some approximate measurements taken by a non-professional: Shoulder width: 39cm Dress width (around the chest): 44cm Dress width (around the waist): 40cm Dress width (around the hips): 46cm Jacket width: 44cm Jacket length: 50cm Dress length: 100cm Jacket sleeve length: 58cm Dress sleeve length: 25cm