The size is listed as 140, but it only says M, so I'm not sure. I've included photos of it laid flat, so please check them. I purchased this at an authorized store that was located in a department store at the time. 100% Cotton This is a design from the early 2000s. Perhaps some of you will find it nostalgic! There are signs of wear, pilling, and stains. There are stains on the white areas around the lettering. This is a used item that was purchased and worn over 20 years ago and has been stored at home. Please only purchase if you understand this. #NEXTSTORY #HeiseiGirl #SummerItem #Costume