This is a sailor collar set-up from the Korean children's clothing brand, angoo. The size is listed as XS, but it feels like a larger 80cm size. It was worn for a photo shoot on a 1st birthday and has been stored at home since, so there are some fold creases. I wrote my child's name on it intending to use it for daycare, but I ended up not using it. The name has been erased.